The Conclusion

is chapter 19 of the Beelzebub manga.

Summary
Shintarō overhears a group of students at Ishiyama High talking about Aoi and Tatsumi fighting because Tatsumi supposedly beat her underlings. Having seen what really happened with Tatsumi with Nene and Chiaki, Shintarō is confused.

On the rooftop, Aoi and Tatsumi are engaged in fighting. Watching the two, Ikari recalls Miwa’s effective plan of taking down Aoi’s underlings. Miwa, being transsexual, remarks that he knows girls well enough. Ikari praises him for noticing the “queen”, Aoi, fell in love with Tatsumi. Miwa is offended and grabs Ikari’s head, demanding him to say who the queen is. Ikari pleads that he is the queen and apologizes to him. Miwa lets go, claiming two queens at Ishiyama High are unnecessary.

Nene, finally realizing that the MK5 set Tatsumi and Aoi up, is getting surrounded by them. Aoi asks Tatsumi why he won’t attack him back, to which Tatsumi tries to accommodate to Beelzebub, whom begins crying. Dissatsified, Aoi performs a sword dance at Tatsumi, successfully striking him. Nene is now backed into the corner of the stairs by the MK5. Shimamura points a pistol at her head, ready to murder her. Just before Nene gets shot, Shintarō saves her by pulling Shimamura’s pistol away from her. He tells Nene to leave, claiming to finish off the MK5 in just a minute.

Tatsumi is now lying on the ground on the rooftop in front of Aoi. Nene rushes out the stairs to try to tell her that the MK5 was responsible for the misunderstanding between her and Tatsumi. With Tatsumi now lying on the ground, Ikari and Miwa begin to approach Aoi to fight her. Suddenly, Tatsumi rises into the air. Landing in front of Miwa and Aoi, he angrily demands Miwa not to interrupt Beelzebub when he’s finally able to control himself. Tatsumi grabs Miwa’s head and slams it onto the ground, to Aoi’s surprise.

Characters in order of appearance

 * 1) Shintarō Natsume
 * 2) Aoi Kunieda
 * 3) Tatsumi Oga
 * 4) Miwa
 * 5) Ikari
 * 6) Shimamura
 * 7) Nene Ōmori
 * 8) Chatō
 * 9) Nakata
 * 10) Buu
 * 11) Beelzebub