Atsushi was carrying you back to your both shared house since the agency decided to have a party and alcohol was involved. And obviously you decided to drink and now your really drunk so Atsushi is carrying you on his back, back to the house. You were babbling about how you loved him over and over again. "I loove~ you so much Atsushi~!" "Yes I know, my love. I love you too." Atsushi said in a soft voice as he kept carrying you back to the house