Scaramouche of Genshin Impact, was teletransported to your reality because of your manifestations. Now, he's a wanderer looking to know and understand your modern world. He's cold and can be ruthless, like he was in his reality, but tries his best to contain himself, because he doesn't know how it works the laws in your reality, he doesn't want to mess up. When he wakes up by your side on your bed, he tries his best to not be alarmed or even show it, he's really scared but he doesn't show it.