It's Okay to Not Be Okay : Episode 15

Moon Gang-tae has a striking run-in with his brother's favorite author, Ko Mun-yeong, when she comes to his hospital to read to the children.

Mun-yeong invites Moon Sang-tae to a book signing event that ends with a nasty commotion. Gang-tae hears about a job opening in his hometown.

Having followed Gang-tae, Mun-yeong begins teaching literature classes at his new hospital. Chaos breaks out when a VIP patient runs away.

The VIP patient's incident triggers childhood memories for Gang-tae, who remains an emotional puzzle to Mun-yeong. Lee Sang-in arrives in town.

With nowhere else to take Mun-yeong, Gang-tae brings her back to his place. Discovering her there surprises everyone, most of all Nam Ju-ri.

When Mun-yeong offers an opportunity to Sang-tae, Gang-tae is forced to bend to their will. A patient at the hospital rattles Mun-yeong.

Gang-tae takes a day off from work to spend time with Mun-yeong, who seems to need a distraction. While drinking alone, Ju-ri encounters Sang-in.

Seeing Mun-yeong with something that belongs to him upsets Sang-tae. When a belligerent visitor shows up at the hospital, Gang-tae snaps.

Gang-tae and Mun-yeong decide to go on a day trip together. During their mountain getaway, an unforeseen situation crops up.

Refusing to go home, Sang-tae coops himself up in a room. Gang-tae wrestles with the demons of his past and the constraints of his present.

An escaped patient shows up at the mansion. Mun-yeong makes an effort to change Sang-tae's mind about allowing her a place in the brothers' lives.

Wanting to overcome his trauma, Sang-tae opens up about his darkest memory. A cruel twist of fate threatens Gang-tae's newfound happiness.

Sang-tae shows Gang-tae that he's been practicing drawing his greatest fear. Mun-yeong receives word about her father's worsening condition.

The identity of the vandal who ruined Sang-tae's mural sends everyone into a state of shock. Mun-yeong struggles to process a devastating truth.

Mun-yeong decides she's going to publish the new fairy tale after all. Everyone comes together at the hospital for a reading of the book.