Fortune Bride

I suddenly lost consciousness on the school rooftop.
When I woke up, I was in an unfamiliar red chapel.
Beside me was my childhood friend, Konoha, trembling.
In the chapel was a giant monitor displaying the game master.
“You will participate in a game to select a ‘bride candidate’.”
Through the slots, you must “bring” Konoha’s body to ecstasy and complete the quota before the “death deadline.”
If you fail, the floor will collapse, and you will “fall.”
The only way to survive is to completely “develop” her with your own hands…​