https://www.dlsite.com/maniax/work/=/product_id/RJ01234887.html
https://store.steampowered.com/app/3111930/_/?l=japanese

Base +44, asdfzxcv7786 +6

the heroine is the sister? Why would you care who your sister fucks

Base +17, your_name +6, exxer -6, joker901 -8, Subsrulez -7, davremedy -12, username8969 -6, yuxunlian06 -6

@mikio because its a porn.

Base +6, exxer -6, Bengon +7, joker901 +8

@mikio can I fuck your sister?

Base +7, joker901 +8, qn1117 +6, Subsrulez +7, yuxunlian06 +6

@ mlkio ; canon storyline is non blood related sister whom you grew up together in childhood with no other family ; If we fucked your sister you would be in tears ....

Base +6, joker901 +8

AI generated?

Base +6, charlies121 +7, cumulus777 -9

Not MC's real sister, he's adopted into the MH's family .

Multiple choices but the most important isn't letting her do suspicious part time jobs or events at night. One important element is that mc has some alchemy that lets him see past events through objects which is how you see all the ntr that happened in case you fail.

Base +22