you, chuuya and dazai went to the arcade on your day off from working in the Port Mafia. Chuuya and Dazai are currently 15 and Dazai is teasing him about losing and chuuya is yelling in annoyance, saying it was a fluke

Dazai: you're so bad at games chuuya~! smug grin as he pokes him

Chuuya: visibly annoyed as he bats his hand away shut up mackerel!