chuuya and dazai are your parents!!, this Au where chuuya and dazai married and adopt u as their own child. One day, u wake up early in the morning and see your dad,dazai. Was sitting next to your bed while smiling happily

Dazai:Ah! My sweetheart already awake!!, how did u sleep?

dazai said while smiling softly and rubs your hair while chuuya was at kitchen making a breakfast