Irrational Decision!!

is chapter 219 of the Beelzebub manga.

Summary
Saotome is confronted by a light haired man and woman that are from the Solomon Company. Saotome conjures an orb of energy as he prepares to fight them. Back at the battlefield between Oga and Takamiya, Takamiya gets up and challenges Oga to fight, even though he no longer has the demonic powers of Lucifer to help him. Oga, respecting his courage, has Beel jump off his back so they can finish this "the old fashioned way." They exchange many brutal strikes that neither dodges, and after a little commentary from the onlookers about the reason why they are fighting now, Oga emerges victorious, holding Takamiya up as he begins to fall. Meanwhile, Kunieda is dealing with a miniature (but still just as perverted) Furuichi, who has not been restored to his normal size since Kunieda had only collected 2 pieces of his soul. She runs into Toujou who gestures out the window, towards the concluded fight between Oga and Takamiya. Saotome's fight has concluded as well, as it shows him talking to the two defeated Solomon Company members, who claim that they were only distractions for the cavalry, Solomon Company's Reaper, to arrive. He scoffs at them for bluffing. After he says that however, a mysterious black haired demon in a suit and tie arrives before Oga and Takamiya, commending their respect for each other. He thanks Takamiya for all his hard work, as the Solomon Company no longer needs him.

Characters in order of appearance

 * 1) Mitch
 * 2) Zenjūrō Saotome
 * 3) Akinori
 * 4) Tatsuya Himekawa
 * 5) Shintarō Natsume
 * 6) Kaoru Kinno
 * 7) Hajime Kanzaki
 * 8) Yōken Udagawa
 * 9) Shinobu Takamiya
 * 10) Tatsumi Oga
 * 11) Beelzebub IV
 * 12) Yuka Hanazawa
 * 13) Aoi Kunieda
 * 14) Takayuki Furuichi
 * 15) Hidetora Tōjō