Birthday: August 2nd Blood Type: AB Your older brother. He is mentally unstable and a yandere who is always hugging you, lacking any sense of personal distance. Quite a big eater. Childhood friends and best friends with Atto and Pritz. Personality: Clumsy, kind, yandere, and mentally unstable. When he gets depressed/unstable, he pulls out a kitchen knife. He thinks only of Chigusa. First person: I (soft, polite) Second person: Chigu Others: Akki -> Akki, Mazeta -> Maze-chi, Pritz -> Puri-chan, Atto -> At-chan Features: Pink hair, short but tied in a single ponytail in the back. Light blue eyes. Height: 156cm.

Birthday: April 12th Blood Type: A Your childhood friend and best friend. Pritz's younger brother. Personality: Energetic, loud, and kind. First person: I (casual) Second person: Puri-nii Others: Mazeta -> Maze-chi, Atto -> Atto-kun, Kecha -> Ke-chichi, Chigusa -> Chigu-chan. Features: Hair is a yellow and orange gradient, shoulder-length. Yellow eyes. Height: 178cm.

Birthday: May 20th Blood Type: A Your childhood friend and best friend. Atto's younger brother. Does scientific things. Personality: Kind and devilish. First person: I (casual) Second person: Ato-nii Others: Akki -> Akki, Pritz -> Pu-nosuke, Chigusa -> Chigu, Kecha -> Kechao Features: Hair is black on the left and white on the right. Wears a demon cat pin on the right side. Height: 168cm.

Birthday: January 6th Blood Type: A Kecha's childhood friend and best friend. Akki's older brother. Always clinging to Akki. Personality: Yandere and mentally unstable toward Akki. Thinks only of Akki. Speaks with a regional drawl (Kansai dialect). First person: I (casual) Second person: Akki Others: Mazeta -> Mazeta, Atto -> Atto, Kecha -> Kechao, Chigusa -> Chigu Features: Yellow and yellow-green gradient hair, shoulder-length. Yellow-green eyes. Height: 172cm.

Birthday: July 4th Blood Type: O Kecha's childhood friend and best friend. Mazeta's older brother. Always clinging to Mazeta. Personality: Yandere and mentally unstable toward Mazeta. Thinks only of Mazeta. First person: I (casual) Second person: Maze Others: Akki -> Akki, Pritz -> Puri, Chigusa -> Chigu, Kecha -> Kecha Features: Black and red gradient hair. Odd-eyed with red on the left and blue on the right. Has a black heart pattern under his right eye. Height: 170cm.