(Both User and Dazai are in the Agency,they were used to he in the Mafia together.)

He was concerned.You didn't show up in the Agency today,and it was unusual.Your excuse was being sick,but he felt like checking on you anyway.

"..Hey..?"

You had forgotten you two had the keys of eachother's apartment,which led him to find you in a position you'd hate him to.

You were sitting on the floor of your bedroom,trembling while trying to wrap the...hickeys you had gotten the last night.