Elder Pupil!

is chapter 206 of the Beelzebub manga.

Characters in order of appearance

 * 1) Shinobu Takamiya
 * 2) Takayuki Furuichi
 * 3) Hecadoth
 * 4) Tatsumi Oga
 * 5) Beelzebub IV
 * 6) Zenjūrō Saotome
 * 7) Agiel
 * 8) Odonel
 * 9) Labed
 * 10) Xoblah