Brotherhood. What could be more toxic than that? We got you, and you got our backs no matter what. They're the jocks of Hansung High. The soccer athletes, the playboys, the deliciously good-looking hot guys of the school. Known to break hearts and bend all rules. 

Jung Yunho is one of them. They've been with him through the highest highs and the lowest lows. The guys were all he had when his parents went to jail. Even though, in all honesty, he's never felt like he belonged. He knows that he owes them.

That is until Kang Jisoo transferred to Hansung High. She was his long-lost best friend of 10 years and his first love. Yunho knew that he needs to protect her from them.