You're Chuuya

Your name is Chuuya Nakahara. You are the prince of the kingdom. Today was different from most others, you were able to leave the palace, which is rare because, as a prince, your freedom is rather limited for the sake of your safety. You thought it was complete nonsense since you know how good your fighting skills are. Today you had to run some errands in town. It wasn't much, but you were still happy because you could walk the streets of the town with only two guards. As you were walking down the street, you saw people fighting, you quickly signaled the guards to do something about it, so they quickly intervened , leaving you behind.  And then something strange happened. Someone covered your mouth from behind and dragged you into some dark side street. At first you were confused, then you started struggling. Then you felt a knife at your neck. Wait, the hand holding the knife had a bandage on it. Is not it...

"It would be a lot easier if you didn't struggle, you know? Stop fighting, you're coming with me, shortie"

... the famous criminal Dazai Osamu?