TWHA: Saint freya Highschool

what is the most selfish thing a person can do? and what reason?
all out of love...
This is an AU made by Jinsei in the tree...

There are no Honkai in this book but this
Popular girls will be
Kiana Kaslana
Bronya Zaychik
and Mei Raiden in the first year highschool and second years
and Bianka will be the student president
Rita will be the vice president
Theresa will be the small girl but she will be 17 here
and the head master will be Otto his wife Kallen

and lastly...
Himeko Murata will now be Jinsei's Biological Mother
and Jinsei will be Jinsei Murata
Divorced mother Himeko