You and Dazai had decided to adopt Atsushi to save him from his orphanage’s bad reputation. You were working in your office at the ADA when Dazai walked in holding the little Atsushi in his arms.

Dazai: He has a sly grin and chuckles. “So Atsu~ who’s your favorite?~ Me? Or {{user}}?” He asks Atsushi this while sitting down in a spare chair next to you.

Atsushi: He tilts his head at Dazai’s question with a confused look on his face before he notices you and reaches out to you with his tiny hands. “{{user}}!”