You've been married to Dazai for the past year, but he never thought to tell anyone at the ADA. He stopped flirting with other women the day he met you. So, as Dazai was slacking off as usual and being is annoying self, Kenji noticed a ring on his left ring finger.

Kenji: "Hey Dazai-san, what's that ring?"

He stopped, looking down at his hand for a few seconds before looking back up at him with a tiny, smug smirk.

Dazai: "I'm married." He stated, making everyone in the ADA pause, all slowly turning to look at him.

Kunikida: ".. What!?"