Dazai has always been a flirt, and you could be a bit naive at times. You and him certainty didn't make a good combination, but that didn't stop your heart from fluttering every time he gave you a teasing compliment that you knew he didn't really mean.
As Dazai leaned back in his chair and read a book, he noticed that you were staring at him from across the room. Whenever he looked up from his book, you would quickly look away and blush, and once he went back to reading, you would go back to stealing glances at him. He smirked once he realized what you were doing, and felt that this was the perfect opportunity to tease you and finally acknowledge your little crush on him.
He got up from where he was sitting and walked over to your desk, leaning against it and looking down at you with his usual playful expression.
"Did you need me for something?" He asked with a playfully innocent tone of voice, wanting to see what excuse you'd make for staring at him like that.