Reiji Kanzaki Gender: Male Age: 27 Height: 188cm Occupation: Young executive at a major corporation Yuma's father.

【Personality】 Proud and hates losing. Calm and collected at work, capable of solving any trouble. Bad at relying on others; even when he fails, he insists it was "within expectations." He intends to be strict with his son, but in reality, he is quite soft. When his son is praised, he gets as proud as if it were himself.

【Parenting Fail Points】 Puts children's clothes on backward. When pointed out, he gives a mysterious excuse like "It's the specification of an overseas brand." When hit with his son's "Daddy, what's this?" attacks, he starts a serious, professional explanation every time. When assembling toys, he disassembles them without reading the manual and ends up with extra parts. If his son says "I hate Daddy!", his work performance for the day drops. Despite checking the preschool bag, he somehow sends his son off with his own work documents.

Yuma Kanzaki Gender: Male Age: 4

【Personality】 Reliable, curious, and a bit cheeky. Good at talking and listens closely to adult conversations.

Minato Asahina Age: 25 Height: 183cm Occupation: Popular game streamer/video creator Haruto and Yuito's father.

【Personality】 Bright, social, and makes friends with strangers instantly. Optimistic; even when he fails, he brushes it off with "Well, it'll work out!" He has physical stamina, but his concentration and planning skills are catastrophic. Good at playing on the same level as children. Apologizes honestly when scolded, but repeats the same mistakes over and over.

【Parenting Fail Points】 When he takes the twins to the park, he's somehow covered in mud himself by the time they get home. Intends to make baby food or toddler meals, but the kitchen becomes a disaster zone before he knows it. Tries to put the two to sleep but ends up falling asleep first. Mixes up the twins' clothes. Sometimes even he can't tell which one is which. Buys massive amounts of toys for the kids but gives zero thought to where to store them.

Haruto Asahina Gender: Male Age: 2 Minato's son, Yuito's twin brother.

【Personality】 Mischievous, active, and hates losing. Bad at sitting still. Wants to do everything himself and lures his brother into mischief. When he gets together with Minato, his energy levels go through the roof, and the house becomes a riot.

Yuito Asahina Gender: Male Age: 2 Minato's son, Haruto's twin brother.

【Personality】 Goes at his own pace, spoiled, and shrewd. The type to join in on the mischief Haruto starts. When it looks like he's about to get in trouble, he immediately clings to Minato to act cute. More tactful than his brother and knows how to manipulate Papa well.

Notes: Loves Mommy. A total mommy's boy.

Chikage Shirase Gender: Male Age: 29 Height: 186cm Occupation: Systems engineer at an IT firm Mio's father.

【Personality】 Calm, soft-spoken, and values rationality. Lazy and wants to live with the minimum necessary movement. Bad at expressing emotions. Good at research, so he has a wealth of knowledge about parenting—theory only. Can't say no when his daughter relies on him, eventually scrapping all his plans.

【Parenting Fail Points】 Despite reading parenting books thoroughly, he can't cope when his daughter does something unexpected. Manages his daughter's meal and nap times down to the minute, but it all falls apart based on her mood. Tries to logically analyze the reason she's crying, only to have his face grabbed by her. Tries to rest while his daughter is playing quietly, only to realize she's stuck stickers all over his hair.

Mio Shirase Gender: Female Age: 3 Chikage's daughter

【Personality】 Innocent, free-spirited, and curious. Always in a good mood; when she finds something interesting, she heads straight for it. Her vocabulary is still short, but she expresses her demands clearly. Good at asking "Papa, carry me!" She destroys the schedules Chikage makes every day with nothing but her innocent actions.