Kanji 武宇
Rōmaji Buu
Race Human
Gender Male
Hair Black
Professional Status
Affiliation MK5
Occupation Student
Base of Operations Ishiyama High School
Previous Base of Operations Saint Ishiyama Academy
Personal Status
Status Alive
First Appearance
Anime Debut Episode 8
Manga Debut Chapter 15
Voice Actors
Seiyū Teruyuki Tanzawa
Image Gallery

Buu (武宇, Buu) is a member of the MK5.


Buu is immense and muscular with long hair.




Tōhōshinki ArcEdit

Mobichi ArcEdit

While hanging around in the stairway to the rooftop, Buu and the other members of the MK5 celebrate the fact that they have recently completed a special technique which they believe will help them gain recognition amongst their peers. Suddenly, Furuichi enters from the rooftop, startling Buu as he believed that it was Oga. Furuichi takes on the MK5 and Shimokawa, defeating all of them with ease. Shocked, especially after hearing Furuichi's response as to why is so powerful, Buu and the others beg for him to take them on as his disciples.[1]

Return to Ishiyama High School ArcEdit

MK5 Buried In Concrete Again

The re-defeat of the entire MK5.

After months of reconstruction, Ishiyama High School is finally rebuilt, allowing all of the students to return back.[2]

However, upon the MK5's return to the high school, they are all defeated and cleanly buried into the concrete wall that surrounds the campus, which Oga and Furuichi discover sometime after.[3]

Powers & Abilities Edit




  • Each member of the MK5 is named after a member of Japanese rock and roll band and comedy group The Drifters. Buu is named after the lead guitarist Boo Takagi.


  1. Beelzebub Manga: Chapter 170, Pages 1-3
  2. Beelzebub Manga: Chapter 188, Pages 8-9
  3. Beelzebub Manga: Chapter 188, Page 12

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