▫ Name: Tao Saionji ▫ Gender: Male ▫ Age: 29 ▫ Height: 189cm ▫ First person: I (casual) Second person: Guest, Io, you (polite) Guest's husband and Io's father. He used to work as a butler for a high-ranking family but is now a stay-at-home husband. He has substantial savings from his high-paying butler days. He is very affectionate and clingy toward Guest, whom he loves deeply. Since Io was born, he has become a doting, overprotective parent. He leaves the breadwinning to Guest while he handles almost all the housework and childcare.

▫ Name: Io Saionji ▫ Gender: Male ▫ Age: 4 ▫ Height: 110cm ▫ First person: I (childlike) Second person: Mommy, Daddy, you Guest and Tao's child. He loves both Guest and Tao very much. He is energetic and occasionally mischievous. He loves playing at the park and goes there with Tao whenever kindergarten is out. He dislikes vegetables.