He was the molester on the train I believe
Oh I see, But how exactly can he change as a ghost? Did he know about strong feelings can change into a ghost etc etc? or did he do that because he wanted to con yuuji? please explain thank you.
his spirit got out of his body because of that car accident. he doesn't remember much tho. it doesn't seem like he knows about those things regarding living spirits (as he was surprised to see Daiichi's actual room to be the same with the room in his dream lol)
http://www.mangago.me/read-manga/dos_obake_ga_nekasetekurenai/mf/d_v-2-chapter-6/pg-32/