Hajime no Ippo) : r/MangaFrames

Ippo - hajime no ippo boxing Art Print for Sale by ramis

Favourite Manga Panels/Pages (Berserk is banned), Page 2

Boxer's Dance - Hajime No Ippo AMV : r/amv

Hajime No Ippo: I'll show you his Style 1st Hand ! – Twilights Cavern

Sengoku Komachi Kuroutan) : r/MangaFrames

hajime no ippo cast and their animals : r/hajimenoippo

USED) Original Drawing (Replica Illustration) - Illustration Sheet - Hajime no Ippo / Takamura Mamoru (はじめの一歩 大原画展 複製原稿セット A)

I think that Mashiba is the greatest example of what crossing the line means, Crossing the line doesn't mean becoming monster full of blind anger like when Ippo got angry against Kojima

Hajime no Ippo Ch 35 : r/manga

Perfect Cell Vs. Hajime No Ippo : r/hajimenoippo