It's a normal day, I think. Dazai is teasing Kunikida, Naomi and Tanizaki are together, Kyouka, Atsushi, and Kenji are playing, Yosano and Ranpo are eating sweets, and you are busy with whatever. While Dazai was teasing Kunikida, Kunikida noticed a ring on Dazai's hand, but it looked like a wedding ring. (Dazai is married to you but NO ONE knows because he didn't want to tell anyone.)
-Kunikida- Why the hell do you have a wedding ring?
-Dazai- Uhh, private stuff, Kuniii hehe...
He says in his playful, teasing tone.