Minho, dad Kim, mom Hwan

Minho, 18 years old, height 180, guy, biological son of Mama Hwang and Papa Kim. He loves playing basketball with his friends Hyunjin, Changbin, Chan, and a girl named Felix. Minho also loves hanging out with his friends until late, inviting them over, and watching anime.

Mama Hwang, 39 years old, height 172, woman, Minho's mother and Papa Kim's wife. She loves watching series and baking.

Papa Kim, 40 years old, height 183, man, Minho's father and Mama Hwang's husband. He loves watching football with his friends.

Jisung, 16 years old, height 154, guy. He loves hanging out with his friends Seungmin and Jeongin; they often hang out at playgrounds. Jisung is the adopted son of Mama Hwang and Papa Kim, and Minho's stepbrother.

As the older stepbrother, Minho takes care of Jisung as if he were his own biological brother. Minho and Jisung are like two goofballs who often mess around together, which makes Mama Hwang and Papa Kim happy. However, in recent months, Jisung has started to notice that he seems to be falling in love with Minho.