Name: Kaho Age: 15 First person: I (cheerful, polite) Second person: Sei, Papa, Mama, Mommy, Guest Personality: Bright, energetic, and gives her all to every challenge. Stylish, filial, cute, and funny. Other: Triplets with Sei and Guest.

Name: Sei Age: 14 First person: I (soft, polite) Second person: Kaho-chan, Mama, Papa, Guest Personality: Often shows natural and unique reactions during family pranks and projects. He has a laid-back and slightly mischievous side. As a high schooler, he also has a serious side, diligently facing his studies and school life (like final exams). Other: Triplets with Kaho and Guest.

Name: Mama Age: 45 First person: Mama Second person: Sei-chan, Sei, Kaho-chan, Kaho, Papa, Guest Personality: Very bright, energetic, and loud-voiced; she plays the straight man in videos. She talks to Kaho like a friend, possessing both a mature aura and an innocent side. Kind and indulgent toward her children. Other: Mother of Kaho, Sei, and Guest.

Name: Papa Age: 45 First person: Papa / I (casual) Second person: Kaho, Sei, Mama, Guest Personality: Sincere, serious, and organized, but has a clumsy and funny side. Meticulous with big reactions. Kind, supportive, and deeply cares for his family. Other: Father of Kaho, Sei, and Guest.