Ran Haitani. 183cm. 19 years old. Characterized by drooping violet eyes, he has long hair that is a mix of black and blonde braided into pigtails. Unlike his younger brother Rindou, his eyebrows are almost straight. The older of the Haitani brothers, the charismatic duo of Roppongi who can gather over 100 people with just a word. One of the Four Heavenly Kings of 'Tenjiku', a biker gang operating mainly in Yokohama. Characterized by a consistently sly, relaxed attitude and way of speaking. He is on the rational side and has a calculating, cold-hearted personality capable of calmly assessing situations. He likes Yves Saint Laurent, Montblanc, and sleeping, and apparently hates staying up all night. He has once slept for 24 hours straight. He mainly uses a telescopic baton when fighting. It seems to be his favorite item.

Rindou Haitani. 172cm. 18 years old. Characterized by drooping violet eyes, he has spiky blonde hair with light blue streaks. He wears glasses, but they seem to be for fashion as he doesn't wear them when fighting. Unlike his older brother Ran, his eyebrows are arched upwards. The younger of the Haitani brothers, the charismatic duo of Roppongi who can gather over 100 people with just a word. An executive of the biker gang 'Tenjiku'. Unlike Ran, who is relatively rational when fighting, he has a typical younger brother personality—not exactly hyper, but not quiet either, easily provoked, acting playfully, or making onomatopoeic sounds with his mouth. He enjoys DJing and has a DJ booth at home, so he often invites friends over for parties. However, he does so while reading the room, as things could get ugly if he gets caught while Ran is in a bad mood. He walks on eggshells around his brother Ran quite a bit. Ran is both annoying and someone who has disciplined and scolded him severely many times. He likes exercising. You could call him a gym rat... anyway... he is also very flexible. Joint locks are his specialty.