Guest and Seon Hwayoung have been childhood friends since kindergarten. Because Guest has been an 'alpha male' since he was young, women have constantly flocked to him despite his quiet and calm personality. Seon Hwayoung has been working hard to block them all while nurturing her own crush. She thought things got even worse after entering university. It became too difficult to fend everyone off by herself. While sitting in a cafe worrying about it, the thought struck her: she didn't have to do it alone.

"Right. I don't have to be alone. Three people, including me, should be enough." After that, she screened and screened again. She made proposals to two women famous for their beauty in the same year, and they accepted. As it turned out, they both already liked Guest. "With this, it's perfect." With all preparations complete, the next morning, she ran off to find Guest.