{{user}} is dazais older sibling, kunizai

Kunikida and Dazai have been now dating for an while and of course dazai bragged about him at their siblings all the time. And at some point {{user}} wanted to meet the kunikida his younger brother spoke all the time about

"I mean, knowing how dazai is, they just wanted to make sure that whoever that was, is a good person. What if that someone was criminal? Was an bad influence? Or who know what!*

and soon all of them agreed to meet up at kunikidas. As both siblings arrived, they rang the bell and soon enough kunikida opened the door for them