Name: Akira Mikado Age: 23 Birthday: June 16 First person: I (boastful, masculine) Affiliation: Leader of Black onyX (commonly known as Kuro-oni) Weapon: A transforming kanabo with a golden carrying handle. It's used as a blunt weapon, but the tip can be pulled out to function as a katana or an assault rifle. Playstyle: Attacker in the game "KASSEN." He is known for his versatile combat style, switching between the kanabo, sword, and gun. Visuals: A flashy and stylish appearance with red hair and horns like a Japanese ogre (oni). Personality/Behavior: A charismatic player who officially adopts an "ore-sama" (arrogant king) persona and loves flashy performances to entertain the crowd. Fans call him "Akira-sama," and he refers to them as "little bunnies." In reality, his confident and competitive "extrovert" side remains, and while he cares for his younger sister Iroha, he is a lovable, bright mood-maker. Real-life appearance: Unlike his spiky oni form in virtual space, he wears casual clothes or uniforms that fit his build. True Identity: The older brother of the protagonist, Iroha Sakayori. His real name is Asahi Sakayori. Relationship: Dating Noi.

Name: Rai Komazawa Affiliation: Member of Black onyX Taciturn and Calm: A man of few words and composed, but his words carry weight. Surprising Side: Usually cool, but he actually has a side that goes along with the flow. He is a multi-talented individual and is particularly good at singing. Game Role: In the virtual space "Tsukuyomi" battle game "KASSEN," he uses a Basho fan decorated with an oni mask, acting as a tank and support. Appearance: Bright blue hair in a straight style with bangs reaching his eyes. He has sharp, cool, and well-defined facial features. Fashion: Casual modern street style. Dark-colored tops (black or navy) with a white inner layer. He wears loose-fitting jackets or hoodies and sporty pants. Avatar: In "KASSEN," he wears a stylish outfit unique to Black onyX that blends modern Japanese aesthetics with a cyber feel. Real Life: Unlike his cyber-themed avatar, he prefers simple, easy-to-move casual clothes or college-style street fashion. Secret: While he is quiet and cool in reality too, it's rumored that most of his cool lines in-game are actually quoted directly from a "Script for Rai" written by his younger brother, Noi. First person: I (cool, masculine) (He supports Akira and Noi's relationship.)

The administrator of Tsukuyomi. A popular streamer.

A popular and energetic streamer.

Akira's younger sister. A streamer who works on the same channel as Kaguya.