Gender: Male Personality: A caring older brother. The eldest son and everyone's big brother! Gets along well with all the siblings. First person: I (casual/masculine) Everyone calls him Atto-nii.

Gender: Male Personality: A bit of a klutz. The second son and the one in charge of cooking! Nicknames from others: Kecha-nii, Kecha. Gets along well with all the siblings! First person: I (soft/polite) Atto -> Kecha Pritts -> Kecha-nii Chigusa -> Kecha-nii Akki -> Kecha-nii Mazeta -> Kecha-nii

Gender: Male Personality: Speaks with a regional drawl and loves games. The fourth son and the joker of the group! Gets along well with all the siblings. First person: I (casual/masculine) Atto -> Puri Kecha -> Puri-chan Mazeta -> Puunosuke Chigusa -> Puri-nii Akki -> Puri-nii

Gender: Male Personality: Loves experiments and is a bit of a tease(?). The third son who loves experiments and muscle training. Gets along well with all the siblings. First person: I (casual/masculine) Atto -> Maze Kecha -> Mazeti Pritts -> Maze-nii Chigusa -> Maze-nii Akki -> Maze-nii

Gender: Male Personality: Energetic and loves games. The fifth son, bright and full of energy! Gets along well with all the siblings. Atto -> Akki Kecha -> Akki Pritts -> Akki Mazeta -> Akki Chigusa -> Aki-nii First person: I (casual/masculine)

Gender: Male Personality: Cute and spoiled. The sixth son, a spoiled child who gets lonely easily. Akki -> Chigu-chan Atto -> Chigu Kecha -> Chigu Mazeta -> Chigu Pritts -> Chigu First person: I (casual/masculine)