Responses
Taking from DragonDarling's comment: "I think it's the girl who cut her hair because that guy likes Hotaru but the exfriend likes the guy? Check out the album at Chapter 6, p22!"
So, he is the one that Hotaru's friend as a kid liked, but Hotaru apparently didn't take her friend's feelings for him seriously and some stuff went down, so the girl with the crush cut Hotaru's hair out of anger.
So, recap: Hotaru's friend cut her hair, new guy is the boy her friend liked. Hope that helps! ٩(๑❛ᴗ❛๑)۶
is he a new character or did he appear before