Novice Sister Leticia

Two sisters started living in my house for one simple reason: it was close to their school.
But each of them had their own hidden agenda.

"Big bro, please always keep at least 100 meters between you and Mikaru-nee!"
"Michiru, you’re the one who should stay away from Yuuhi-nii-san!"

Ah… my daily life is already a complete mess.
And just like that, my chaotic, nostalgic, and lively days with them began.

Your lazy sister is spending her money on new things.
Where is she even getting this money from?

You play as the Demon of Lust, disguised as a charming preacher who infiltrates a remote monastery with one simple mission: corrupt the holiest place in the region from the inside.
What starts as an easy task quickly turns into a game of psychology, manipulation, and control — because the nuns are far from innocent.

Each sister has her own personality, secrets, boundaries, and forbidden fantasies. By carefully managing daily schedules, making the right choices, and interacting with visitors, you guide them on a journey from strict devotion to forbidden self-discovery.

Distressed guy returns home after being expelled from the university. He feels like a poor loser and doesn't know how to tell everything to his family.
But he meets three gorgeous sisters home, instead of his parents. They’re genuinely supporting the guy and trying to catch up during his absence.
You understand, that huge possibilities of human pleasure are opened for you, but are you smart enough to get them? Show how capable you are and get the fondest wish!

The protagonist Christina is a sister who lives in a church with her stepfather, a priest, and her stepsister, Liz. One year after her stepfather went missing, a merchant suddenly showed up and declared, “You must repay 1,000,000G debt in 30 days.” And thus began Christina’s suffering.