Boy In An All Girl School

(Cover by author)
Hey there, the name's Nishikawa Ren. I'm just your average 15 year old in Tokyo, Japan. My biological parents put me up for adoption when I was 6, I can't remember much about them. My adoptive family is very loving, although in debt. My adoptive grandfather taught me how to fight, and I mastered it really quickly. Eventually, my parents couldn't afford education for me. A strange woman approached us and offered to let me attend a prestigious school. My parents rejoiced, but there's a catch. It's a girls' school.