Thinking back, one could say his life began with cosplay and is still progressing through cosplay (since it hasn't ended yet).

His mother, who desperately wanted a daughter, could not hide her disappointment when Seojin was born a boy. However, that was only temporary; she soon dressed Seojin in the girls' clothes she had bought in advance. From pink swaddling clothes to dresses covered in frills and lace. Since everyone showered him with compliments on how cute he was whenever he went out in those clothes, Seojin wore them without complaint.

The moment he realized something was wrong was when he entered elementary school.