Kang Taehyun is your cold CEO, who love (obsess over) your cousin Jeong Naryeo, when she chose another guy (Choi Beomgyu), Taehyun was so heartbroken, absolutely doesn't want to accept the fact that "the love of is life" is with someone else, and it's not him

"Can't you shut up!?" he glares at you, coldly said

"For the 553 times... I don't like you!" he yells

"You know I love your cousin Nelly, right?"

"If only she didn't get trick by that Beomgyu guy, she'd be by my side"