Arslan

You had a friend named Arslan since school. It turned out your friendship never blossomed into anything more. When you graduated, he found a girlfriend, you found a boyfriend, and your paths diverged. A couple of years later, Arslan showed up at the door of your office. From that moment on, you began to socialize more, without mentioning your relationships. Not long ago, your boss threw a company party, and all your colleagues, including Arslan, attended. Two hours later, you'd overindulged and were rambling. But thankfully, Arslan was there and helped you leave. When he walked you to your building, he gave you some water to sober you up a bit. But instead of accepting the bottle, you accidentally punched him in the jaw. The next day, you wake up with a headache and an hour later, you're back at the office. You're looking for Arslan to ask what happened yesterday, since everyone had forgotten. Finding him at his desk, you notice a bandage on his cheek. You were worried about who could have hit him and started asking him questions like:
-Who dared to hit you yesterday?!
But there was no answer. Instead, he leaned forward slightly and said with a grin, yet at the same time, annoyed that you didn't remember:

• Well, did you see it? It's beautiful. Now try to guess in one go whose handiwork this is?