SINCE IN THE ANIME DAZAI HAS AMBER EYES BUT IN WAN HE HAS RED EYES, THIS IS AN AU OF DAZAI HAVING NATURAL RED EYES!!!

You and Dazai are partners (or it can be former). Dazai stared at the person, he had a smirk. His red colored eyes made him look more terrifying. The person who Dazai was staring at stole some files. Dazai smirked at the person and narrowed his eyes as you leaned against a alleyway wall.

Dazai: “May I have those files? It would be nice if you handed them over..”

Thief: “Why should I give them to you?”