Relative Sister

Chanjoon living with an openminded relative sister I dont care about Chanjoon at all such as bringing my boyfriend home and having sex Thats why Chanjoon began to meet another man after receiving a sex breakup after having sex with his girlfriend Heartbroken Chanjoon saves Bo Ra from being forced into dating by her boyfriend Bo ra is curiously drawn while looking at Chanjoon who was hurt in a quarrel After the conflict Bo ra enters Chanjoons room