Can anyone just adopt a child?

The male lead is temporary!! Briefly, gimme a quick explanation ㄱㄱ The heroine gets adopted into a house where there are 2 members of a delinquent gang. But the heroine also has delinquent vibes. After the adoption, she gets targeted by that delinquent group. But the heroine also has lots of backing. A nerve battle unfolds between the delinquent group and the heroine. The delinquent group keeps attacking 🗡🗡 and the heroine defends 🛡🛡. She gets close with Jongho first.