That Valt is one tough opponent.

Kensuke Midorikawa (緑川犬介, Midorikawa Kensuke), also known as Ken Midori in the English version is a protagonist in the anime and manga series, Beyblade Burst. His current Beyblade is Guardian Kerbeus Heavy Revolve.


Ken has long, spiky black hair, green eyes, and a sharp fang sticking out on the left side of his mouth. He is dressed in a green coat with lighter green accents and a pink chain circle on the chest, darker green pants, black shoes, and a green and pink scarf.

Both of his hands are often gloved by his two dog sock puppets: a blue one named Keru, who has sharp teeth; pointy ears and a scary expression, and a brown one named Besu, who has square teeth; longer, floppier ears; and an overall more approachable appearance.


Initially Ken seems to have an intimidating and eccentric personality, however it is revealed later that he is actually very shy and soft-spoken, when he uses his real voice to speak. Despite his shy attitude, he is shown to be very friendly and supportive.

Because his parents travel often for their jobs, Ken never had an opportunity to stay in the same school for a long time, which resulted in him not being able to have many friends. He is also shown to get nervous under pressure easily. Going along with his shy personality, he is also quite sensitive.

He is extremely talented as a ventriloquist, being able to speak as his hand puppets even in battle mode. He uses his two puppets, Keru, who is the more aggressive and outspoken one, and Besu, who is the kinder and more gentle one, to portray his feelings on two spectrums. Because of this, it is difficult for others to figure out what Ken is thinking.

Over the course go the series, however, Ken becomes more confident and assertive, as well as speaking without the use of his puppets.



Beyblade Burst (manga)

Beyblade Burst (anime)


Special Moves

  • Chain Launch: Kerbeus uses its defensive layer to counter opponents and attack them, defeating opponents with weak defense.


Beyblade Burst (anime)
Opponent Episode Result
Valt Aoi 02-03 Lose (2-1)
Shu Kurenai 04 Lose (2-0)
Valt Aoi 10 Win (4-0)
Ukyo Ibuki 20 Win (2-1)
Yugo Nansui 20 Win (2-1)
Xander Shakadera 21 Lose (0-2)
Valt Aoi 21 Win
Daigo Kurogami 22 Unknown
Unknown Blader 30 Win (2-0)
Valt Aoi 31 Lose (1-2)
Valt Aoi 34 Unknown
Ben Azuki 34 Lose (0-2) (flashback)
Rantaro Kiyama 34 Win (1-0)
Unknown Blader 42 Win
Raita 44 Lose x 7
Ben Azuki 44 Win (3-2)
Lui Shirasagi 45 Lose (0-3)
Beyblade Burst (manga)
Opponent Chapter Result
Valt Aoi 02 Win
Valt Aoi 02 Lose


Valt Aoi

When Valt learned that Ken didn't have many friends due to constantly changing schools, he set out to befriend him and invite him to join the Beyblade Club. Ken even stated in episode 13 that Valt was probably the first real friend he's ever had. Even when Ken had to move away due his family's career, the two agreed to always be best friends, no matter how far apart they may be.

Ben Azuki

Ken met Ben sometime after moving to his new school, and the latter eventually invited him to join Team Beasts. The two are often seen hanging out together, and it's implied that Ben may have had an influence on Ken, because he had become noticeably more confident and assertive.

Shu Kurenai

Ken appears to have a high level of respect for Shu, to the point where he only agreed to join the Bey Club if he could battle him. He also would get flustered whenever Shu complimented him.


  • "Alright Kerbeus! It's time for the Chain Launch!"
  • "Is he gonna start with an attack or wait and defend? Which one?"
  • "If Xander's using his power side, I know what to do. I'll go in for the attack!"
  • "It's not like I want to leave you guys. You're my best friends."
  • "Valt sure is a good guy, isn't he?"


Beyblade Burst



Beyblade Burst Evolution





  • Ken, like other characters in the Burst cast, shares some similarities with his Beyblade, King Kerbeus.
    • His Japanese family name Midorikawa means Green River. The Japanese character "Ken" in his first name means "canine"
    • His name, Ken, and his Bey Kerbeus share the same initials, hinting at the letter K in the center of the Bey.
  • His two puppets, named Ker (Keru) and Beus (Besu), make up the name of his bey, Kerbeus.
  • Unlike other Bladers Ken usually pulls his cord up, in the middle, or down.
  • Ken is the only main Blader from Beyblade Burst who doesn't have a major role in Beyblade Burst Evolution.
  • He, Rantaro, and Gabe are the only characters from the Beyblade Burst series which their names are written in kanji fully.