The story of an illegitimate son's revenge and his forced entry into the family tree.
He always thought that he was his half-brother's illegitimate brother, and that he was going to be included in his family's household registration book.
"Alai? In fact, we are not related by blood at all? Is it too late to quit now?"
"... It's too late."
Purpose: Sometimes in life you need to let go of your stubbornness and be frank and sincere