Lee Jeno is sick of being treated like a kid by his crush, who happens to be three years older than him. He's sick of seeing her get hurt by jackasses who pretends to love her. He's dying to tell her the truth, to let her know that he can treat her better than any other guy. So, when he turns 21, he decides to take his shot. 

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Kang Haewon is a staff at SM Entertainment. The girl's a favorite noona to every NCT Dream members. Little does she know an unexpected confession could change her life forever.