After escaping her life in Seoul, Mok Hae-won returns to her hometown. She runs into Im Eun-seop, an old classmate who now owns a bookstore.

Hae-won runs into Lee Jang-woo, who invites her to a book club at Eun-seop's bookstore. She reminisces about an old friend who betrayed her.

More details about Kim Bo-yeong's betrayal are revealed. After her house freezes, Hae-won is forced to stay with Eun-seop at the bookstore.

Hae-won runs into Bo-yeong in the city, where they have coffee. Eun-seop heads into the woods to rescue a woman lost in the mountains.

Hae-won's mother unexpectedly shows up in Bukhyeon, leaving Hae-won and Shim Myeong-yeo confused. Eun-seop meets up with Bo-yeong for a conversation.

An old classmate with feelings for Hae-won returns to Bukhyeon, revealing their history together. The town attends the high school's homecoming event.

Eun-seop's reaction to Hae-won's confession leaves her frustrated. Later, he falls ill and mysteriously disappears.

Hae-won finds Eun-seop in the woods, but he acts distant and cold towards her. Things get even more awkward between the two after she gets sick.

Hae-won deals with anxiety after getting a long-awaited confirmation from Eun-seop. Details about Eun-seop's enigmatic childhood are revealed.

A mysterious man visits Eun-seop and leaves him with a difficult choice. Hae-won runs the bookstore's flea market in Eun-seop's absence.

After receiving an eviction threat, Eun-seop and Hae-won visit the bookstore's landlord. A friend's illness causes Myeong-yeo to remember her dark past.

Shim Myeong-joo and Myeong-yeo's traumatic past is further revealed. Bo-yeong visits the bookstore and makes a confession to Eun-seop.

Hae-won and Bo-yeong have honest conversations about their past. Hae-won finds and reads Eun-seop's secret diary.

Hae-won calls her mother after Myeong-yeo is admitted to the hospital. Later, Hae-won finally learns the truth about her family's past.

Haunted by her past, Myeong-yeo makes a difficult choice — forcing Hae-won to make one of her own.