https://www.dlsite.com/maniax/work/=/product_id/RJ01333737.html

[Synopsis]

Celestina (Serena), who was reincarnated as a saint in the otome game she played in life, progressed smoothly through the story, defeated the boss, the Demon King and peace came to the world.
And after safely reaching the ending, Serena was close to being engaged to the prince.
Then, the female warrior "Lulu", who had been traveling with her, appeared and then she lost consciousness while talking...
When Serena woke up, she was naked and tied up by tentacles...?!
"It's Serena's fault for trying to marry the prince when I'm here."
Lulu's true identity was a succubus, a remnant of the enemy demons.
With her powers sealed by the lust mark engraved on her, Serena was helpless against the relentless tentacle torture and Lulu's loving pleasure torture...
"Cute Serena... I love you, I'll never let you go again."
Will Serena fall?
She will. (͠≖ ͜ʖ͠≖)

Base +25, Jago Smith +8, Nlkfma +12, wzmjn233 +5, blank415 +7, shirleyhayes +6, nuts987 +13

the reincarnation plot is a bit unnecessary but overall this is so goooood

Base +7

百合觸手大好

Base +6