Kinbaku Seido Kaichou -Kare ni Shirareta Watashi no Himitsu | 緊縛性奴会長 ～カレに知られたワタシの秘密～

I'm treated as a problem child in a venerable school.

Sometimes I thought I would do something good and I thought of trying to catch "a naked pervert who appears in the school at night". However, there was a beautiful girl in a tight-fitting collar and a tight-fitting band... the student council president called the goddess of school.

Although I suddenly escaped, I was called to the student council room the next day and has given a collar and rope.

"Be my husband," this is how the mysterious secret relationship between me and the beautiful student council begins.