Crossing the world to kill you

This is a story which nishinoya and asahi(both from haikyuu I don't own the characters) grown up and cross over into the killing stalking (again I don't own the characters) and meet sangwoo on which this crossover begins and ends with lot of trama-causing and/or subjects some may not be able to handle I'm also putting a big "⚠️⚠️" in those with the most triggering of talk which may be the beginning to mostly all of this book.