I Completely Fought

is an omake chapter of the Beelzebub manga, first published with chapter 75 on the Weekly Shōnen Jump magazine.

Characters in order of appearance

 * 1) Beelzebub IV
 * 2) Tatsumi Oga
 * 3) Hilda
 * 4) Misaki Oga
 * 5) Arandron
 * 6) Takayuki Furuichi (flashback)