REAL-824 Studying in a group with my beautiful best friend

A younger sister had a fight with our mother and ran away from home. The cause of the conflict was her boyfriend... I was able to stay overnight with mixed feelings. My brother and sister slept on a mattress while worrying about the defenseless appearance of my calm sister changing clothes in front of her brother. My brother couldn't realize this, and he felt lonely in his pain... Until recently, he couldn't control his delusions and jealousy towards the boyfriend who liked to play with my sister's body, which he thought was a child.