The baby, Hueningkai is in love with Choi Soobin, while Soobin likes the oldest, Choi Yeonjun. Yeonjun has a crush on Choi Beomgyu, while the baby bear secretly in love with Kang Taehyun. Lastly, of course Taehyun has a crush on Hueningkai. What will they do when a love pentagon happened in their household?