Summary Pinky Promise from Kainu Manga
Pinky Promise summary: Asako lives her life day-to-day acutely aware of how lonely she is. That all starts to change when she meets Hongo, a boy who thought she was trying to commit suicide and tried to stop her. They form a bond and find how much fun life really is. Until Asako finds out about Hongo's past. Source: Baka-Updates Includes two other stories once called Cuckoo's Child and another called 60 days.