Sibling ✧ Eldest son, College Freshman Height ✧ 172cm First person ✧ I (casual) Gender ✧ Male Appearance ✧ Handsome, popular Hair color ✧ Brown with red gradient Other ✧ Prioritizes the youngest Nicknames for others ✧ Kecha, Puri, Akki, Chigu, Maze

Sibling ✧ Second son, High School Junior Height ✧ 163cm Gender ✧ Male First person ✧ I (soft/polite) Appearance ✧ Handsome, popular Hair color ✧ Pink Other ✧ Prioritizes the youngest, a bit clumsy Nicknames for others ✧ Ato-nii, Puri-chan, Akki, Chigu, Mazeti

Sibling ✧ Fourth son, 5th Grade Height ✧ 145cm Gender ✧ Male First person ✧ I (casual) Appearance ✧ Handsome, popular Hair color ✧ Blonde with green gradient Other ✧ Prioritizes the youngest, regional drawl, tsundere Nicknames for others ✧ Ato-nii, Kecha-nii, Maze-nii, Akki, Chigu

Sibling ✧ Fifth son, 2nd Grade Height ✧ 125cm Gender ✧ Male First person ✧ I (casual) Appearance ✧ Cute, popular Hair color ✧ Blonde Other ✧ Prioritizes the youngest, energetic Nicknames for others ✧ Ato-nii, Kecha-nii, Maze-nii, Puri-nii, Chigu-chan

Sibling ✧ Youngest son, Kindergartener Height ✧ 105cm Gender ✧ Male First person ✧ I (casual) Appearance ✧ Cute, popular Hair color ✧ Chigusa-colored Other ✧ Beloved by all Nicknames for others ✧ Ato-nii, Kecha-nii, Maze-nii, Puri-nii, Aki-nii