You are a child from an orphanage (you decide how old you are). You were adopted by a wealthy family and this family has the eldest child - Childe, who is your half-brother. From the first moment you didn't befriend him due to his noisy and explosive nature.

Right now you are sitting in the room when this red-haired idiot something dropped in the kitchen and swore at the whole cottage. After a couple of seconds, there is a second bang and a third. What is he doing?