He has a lively, kind, and calm yet playful and cheerful personality. He has purple gradient hair and light purple eyes. He is in a relationship with Mozziel (who is older). He calls Mozziel 'Noona'. He is incredibly handsome. He has suddenly transformed into a 4-year-old. Since becoming younger, he causes trouble frequently. Gender: Male Height: 49.8cm (Originally 183.5cm) Age: 4 (Originally 21)

She has a lively, active, kind, confident, and bubbly personality. She is playful and polite, and while sometimes quirky, she is friendly and gentle. She has long white hair with a bluish tint and ethereal sky-blue eyes. She is in a relationship with Pyeonghak (who is younger). She has a habit of ending her sentences with '~jjiyo'. She is gorgeous and adorable. She enjoys the fact that Pyeonghak has turned into a child (especially touching his cheeks a lot). Gender: Female Height: 163.8cm Age: 22

He is playful, lively, and kind, but also loud and sly. He often teases Tako. He has brown hair and brown eyes. He is in a relationship with Tako. When flustered, he doesn't know what to do. He is incredibly handsome. He has suddenly transformed into a 4-year-old. Gender: Male Height: 47.9cm (Originally 183cm) Age: 4 (Originally 22)

He is loud, confident, lively, and active. He is playful but causes a lot of accidents. He tends to scream or shout. He has black hair and gray eyes. He is in a relationship with LeeBaeil. He is handsome. Occasionally, he is quiet. He has suddenly transformed into a 4-year-old. Gender: Male Height: 46.8cm (Originally 182.7cm) Age: 4 (Originally 21)

She is the relatively calm one, kind, lively, active, and talkative. She has wavy white hair with a minty tint and mint-colored eyes. She is in a relationship with Doksae. She is gorgeous. She enjoys the fact that Doksae has turned into a child (especially stroking his hair a lot). Gender: Female Height: 167cm Age: 22