My Roommate Is a Gumiho

While walking down the street with a friend, Dami accidentally swallows Woo-yeo's fox bead. The next day, Dami moves in with Woo-yeo, hoping to find a way to return the fox bead to him.

Dami is shocked knowing that she could die if she fails to get the fox bead out of her body within a year, and Woo-yeo writes a contract to protect Dami and the bead. Dami struggles to survive in college among Tiger men.

After the marble turns blue for the first time in 999 years, Woo-yeo thinks it might be his last chance to become human; Dam tries to stay away from her senior who shows an interest in her.

Woo-yeo starts to get annoyed by Seon-u texting Dami, and Hye-seon tries to become a college student using Woo-yeo's magic, promising Woo-yeo that she will watch over Dami.

Dam feels love for Woo-yeo, and Woo-yeo, who was trying to keep his distance, also begins to feel special feelings for Dam. Woo-yeo is suspicious of a murder case in the downtown area that has become a issue.

Dam is disturbed by the thought that Woo-yeo doesn't understand her feelings. Dam goes on a blind date with a disturbed heart, and Dam's mother visits the house where Woo-yeo is left alone.