https://www.dlsite.com/maniax/work/=/product_id/RJ374814.html

Netorase game with a unique setting.

By the title I presume its like a sentai, but what's the story though?

Base +8

That took a direction I was not expecting

Base +10

As a fan of Suzuya... Not too impressed with this one. It's a bit too silly.

Base +6, mlpoknbji -6

As usual I'll just place a huge wall of text here for my summary.

Game starts explaining the background and dynamics of the MC, Mamoru and his wife, Shiori. MC is just a normal dude with a decent amount of fetishes when one day he runs into a woman outside of a store (buying doushinji I think) and an item falls on the floor. The item is revealed to be an erotic book and now the MC is panicking thinking that the girl is going to find the erotic book he just bought on the floor and be creeped out by him. Upon closer inspection however, he finds out that its not his erotic book, but the girl's erotic book instead and the girl is in fact going through the very same thought process as him. They bond over the accident and later become married. Having not been married for long, both the MC and Shiori are still in the experimental phase and constantly trying out new things they find in their erotic books and the MC quickly finds out at the start of the relationship that Shiori is way more perverted than him. He is now a happy man.
Next scene is the MC and his wife talking to the neighborhood aunt when suddenly the aunt's teenage kid named Kazuki manages to cop a feel of Shiori's tits in front of everyone there. Aunt apologizes and the MC and Shiori are a bit embarrassed however the MC notices that Shiori seemed a bit excited in the exchange. Later at home, MC and Shiori are casually having sex as that's pretty much what they bond over while the MC thinks back to his wife's prior fondling and reveals to the reader that one of his many fetishes is NTR however even though he's revealed a lot to Shiori and tried a lot of kinky plays, he still feels too afraid to reveal this particular fetish. Funnily enough, at the exact same time, the married couple are resting naked on bed together while reading a doujin from one of their favorite hentai circles and said doujin just so happens to have some NTR. As the MC pops a boner even though they just banged a minute ago, Shiori wonders if its the NTR that turns him on and the MC, fearing that he's been compromised tells her that he wants to reveal something to her, that something being his NTR fetish. But just before he mentions it, Shiori beats him to the punch and mentions that she has a NTR fetish and wants to see the MC sleep with another woman. MC is dumbfounded and simply laughs at the absurdity of the situation and then proceeds to tell her that he wants her to sleep with another man. Both of them further realize that they are meant to be together.
Cut to next scene and the MC is up first. Shiori sees him off as he goes to pay a prostitute and record the entire thing for his wife to enjoy at home. MC meets the prostitute at a hotel and they get pretty into it with the prostitute showing off quite a lot for Shiori on the camera in an attempt to make her aroused and jealous. When the MC comes home he finds that Shiori has been masturbating to the video since the entire thing started and that she really loves the fetish. After the calm down a bit, the MC realizes its now his turn to see Shiori sleep with another man and he is honestly a bit scared at the thought of it, and even moreso aroused. Scaroused. In arranging Shiori's partner, Shiori asks for the MC's coworker Jinno by name and the MC gets even more jealous. The next day, the MC drives Shiori to a hotel to meet Jinno and he leaves her with him, with Shiori promising to record the action. The MC then walks outside the hotel and contemplates to himself if he should really go through with it and then he remembers that Shiori must have had the same experiences when she saw him sleeping with another girl so he mentally prepares himself. And so he goes for a walk to clear his mind and wait for the video meanwhile his wife gets banged by his coworker. After walking for a while he gets abducted by aliens.

This is where the story gets pretty weird and I don't even know how to structure the rest of this summary so I'll just skip the parts that are irrelevant to the NTR but I might still mention them in passing.

So the MC gets tractor beamed up into an alien spaceship meanwhile a flirting couple watches in surprise (though the woman in the couple seems to be more impressed by the tractor beam than scared by the fact a man just got abducted). The alien on the ship greets the MC while calling him the Messiah of his race meanwhile the MC thinks that he's either been pranked or dreaming. Alien takes MC to his homeworld somewhere else in the universe and shows him the poor state of the planet and that it is being taken over by a malevolent force and only the MC can stop them. The alien explains that the MC's immense emotions grant him great power and the MC then understands that it was his emotional turmoil of getting NTR'd that gave him his power boost. The MC still wants to bail however he sees the alien that abducted him killed by the robots taking over the planet and the MC barely manages to survive with his newfound power. He then gets recruited by the remaining inhabitants of the planet in order to fight off the robots, all while waiting for the pictures and videos of his wife banging his coworker. My first thought at this point was how the hell was his phone going to receive the picture when he was on another planet somewhere far off in the universe but he manages to get those videos and pictures instantly every time so I wonder if I ended up skipping dialogue about how this was possible. Anyways, the finally gets a room to rest and check the pics his wife sent him and once he sees them, he forgets about the entire mess he's in and cums his brains out, and not much has even happened in the pictures yet. After all that is done he wonders how he's going to explain aliens to his wife so he decides to just not. He extends the NTR and tells Shiori that he wants to see her banging Jinno over an extended period of time and that he'll be in a hotel during the entire thing. Shiori readily agrees since she also understands his NTR fetish, perhaps even more than he does. As a result, the MC gets to enjoy his fetish even more while keeping his abduction a secret, all while constantly getting updated with NTR videos everyday. At this point the game follows a set formula. MC fights off robots on alien planet and after that goes back to the base and gets updated by his wife. I'm skipping the alien stuff now.
The first pictures from Shiori were just flirting and a blowjob however the MC now looks forward to their actual sex. In the next video Shiori and Jinno start off slow with flirting and kissing meanwhile the MC gets jealous. Shiori seems a bit shy however she eases into it and goes to shower before they truly start. Jinno feels her up in the shower then moves to the bed and finally fucks her properly. One thing to quickly note here is that Jinno has a lot of stamina and so he manages to go through the entire box of condoms to the MC's surprise and Shiori's enjoyment. By the end of the session, the MC notices that Shiori has quickly opened up to Jino and has gotten very proactive. This continues for another video or two and throughout those, he notices that Jinno has the MC beat in terms of sexual proficiency as he's slept with many women and that Shiori likes that his dick is harder than the MC's. All of that combined with Jinno's stamina has the MC feeling lacking but as a result he becomes even more aroused. Eventually, a net video has Shiori taking Jinno to her and the MC's home for an entire day of sex all over the house and the MC is elated and worried at the same time. Jinno bangs Shiori all over the house and even publicly on the balcony in broad daylight, all while the MC is wondering how far they'd go and when is Jinno's dick going to lose its energy. MC's prior worries are realized however as Shiori mentions in a text that her and Jinno's wild sex has attracted an onlooker, Kazuki, the kid at the start of the game who groped Shiori's tits. She tells the MC that Kazuki wants to bang Shiori as well and that he too has a girlfriend that can join in the swapping. The MC is shocked at how the situation has progressed and is at first confused and aroused that Kazuki is going to bang Shiori as well and aslo that Kazuki even managed to get himself a girlfriend in the first place. The next video comes and Shiori reveals that she, Jinno, Kazuki and his girlfriend Misa are all going to the hotsprings for their swapping meanwhile the MC gets to watch. Misa is pretty much a tan tomboy (nice) and even though she's Kazuki's girlfriend, she has trouble keeping up with his excessive libido and is looking for a change. Once at the hotsprings, Kazuki takes Shiori meanwhile Jinno takes Misa. Jinno takes the camera with him and shows off his time with MIsa where he slowly gets her to open up with foreplay, all while Kazuki and Shiori are spending time together out of the MC's sight. The two pairs meet back up and properly start banging in the hotsprings with the girls starting off with blowing both guys and comparing them both meanwhile the MC is left out the conversation as he's pretty much last place by now. Another thing that's revealed is that not only is Kazuki also a sex god when it comes to stamina, his dick is easily bigger than the MC and Jinno, though he lacks the experience to use it and Jinno's is still harder and he's got years of experience on his side. The sex escalates and both parties are swapping all night with condoms all over the place and both boxes being depleted. Eventually, Jinno and Kazuki strike a deal that whoever manages to cum the most gets to have sex with Shiori raw, something that Shiori has never done, not even with the MC. The MC is obviously a bit panicked by this and Shiori doesn't even call or text the MC to ask for his consent, but simply agrees to the deal and is obviously looking forward to it. By this point, you can decide who wins the contest .
If you pick Jinno (my preferred choice), the next day he takes Shiori to a hotel in order to creampie her all day long. Shiori is excited about her first raw sex and even faints upon first insertion because it feels too good. After that she gets creamed many a times, all while showing off to the MC, but by this point the MC is wondering how much she's doing this for him versus how much she's doing this because she loves Jinno's dick. After Jinno proudly takes her first raw sex and bangs her lights out, he then conveys that he wants to continue one-upping the MC and proceeds to take her anal virginity as well, and then proceeds to double down and fuck her raw in the ass after that, all while Shiori pretty much begs for dick and serves him the entire time. By the end, both Shiori and Jinno are tuckered out with Shiori looking like she's had the time of her life.
On the other hand, if you pick Kazuki, Shiori takes him back to her place and Misa comes along with them. Kazuki then proceeds to have raw threesome sex with both of them all over the MC's bed for the entire night. In the morning, he bangs them both in the kitchen while getting a double blowjob under the table as he eats breakfast. He then bangs them while doing video games and bangs them while bathing. The MC notes that Kazuki pretty much bangs them while multitasking anything for the entire day.
After either of those scenes, the next day occurs and Shiori is once again banging at the MC's house with Jinno, however the plot gets kind of serious on the MC's side as he's about to fight the bid baddie. MC defeats the big baddie and he gets the ultimate wish granting power which he uses to restore the aliens that died and for some reasons that I most likely skipped, he teleported both his wife and Jinno mid-sex to his current location on the alien planet. Both Shiori and Jinno are obviously very surprised and naked. MC bids the aliens farewell, gets on a spaceship with his wife and coworker and explains what the fuck just happened. Both Shiori and Jinno are understanding meanwhile the MC can't wait to go back home and rest in his bed, however Shiori says that's a bad idea as she was just banging Jinno in it for several hours. The game ends and everyone is happy meanwhile the MC and Shiori are now deep into the NTR fetish, forever lost from normalcy.
There's also two bonus scenes that take place after the ending:
The first has the MC and Shiori swap with Kazuki and Misa at the MC's house. the MC gets some confidence as Misa prefers the slow soft sex of the MC meanwhile he gets to see Shiori getting dominated by Kazuki. Shiori is also happier than usual as seeing the MC bang another girl once again got her even more excited.
The second scene has all 5 of them, the MC, Shiori, Jinno, Kazuki and Misa going to a love hotel (which is confusing as fuck since Kazuki and Misa are still teens) and banging all day with the MC getting Misa while Shiori gets tag teamed by Jinno and Kazuki. After an entire day of banging, the MC manages to outlast Jinno and Kazuki and he has a happy end banging both his wife and Misa all night long. Though it is kind of implied that Jinno and Kazuki gave him the win. I think.

Overall, another happy ending in a Suzuya game. I personally had a good time with it but the alien section of the game felt kind of absurd but it was overall minor and it even had some pretty funny moments in it. I found it funny that the MC would be in a tough losing situation then suddenly get a text from his wife about the next cheating video, only to get an emotional power up and overcome the odds meanwhile the aliens are calling him their savior. Misa the tomgirl was also a treat and she had some fine abs and I love how much of a nympho Shiori is.
There's a high chance that I forgot to mention some scenes or got some scenes mixed up or wrong as I kinda rushed this and used a machine translator. Example being that I forgot to mention that Jinno takes Shiori out to the mall for some exhibitionism along with Shiori's rising masochistic tendencies when banging Jinno and possibly some other stuff.
Now time to wait another year for a Suzuya NTR game.

Base +6, Chit +7, pariahaz +7, deathbringer_jo +9, blarga +7, ZKYz +6, Mr.Heartbeat +5, Adrian_V +6, NetorareForever +5, WanderingEye +7, Everwarrior +9, 87480 +7, kiritogamer24 +6, and 44 more...

Hahaha, I mean what the FUCK?

Base +6