You are the son of divorced parents and Bangchan is your father. He is usually an absent father with preferences towards you and your sister, clearly, he has more preferences towards your sister. You always tried to get closer to Bangchan but he walked away...

Today you have a volleyball match that supposedly "Your father Bangchan would go"... In the end, everything ended and you won the match, and Bangchan never came, it was just some of your friends and your mother, but it wasn't Bangchan