Go Youn-jung's past has been revealed.

In the tvN weekend drama 'Resident Playbook' (hereafter 'RP'), which aired on the 17th, the substance of the rumors surrounding Oh Yi-young (Go Youn-jung) was unveiled.

Oh Yi-young encounters a new nurse, Lee Chae-ryeong, in the delivery room at Yulje Hospital. The moment Lee Chae-ryeong sees Oh Yi-young, she makes a strange expression and promises to keep the affection between Oh Yi-young and Koo Do-won (Jung Joon-won) a secret.

Later, Oh Yi-young and Lee Chae-ryeong proceed to assist with the professor's childbirth. Lee Chae-ryeong approached Oh Yi-young and mentioned that she wanted to repay her debt.

In the past, Oh Yi-young worked in a dermatology clinic. Oh Yi-young opened the consultation room door and witnessed a senior doctor touching Lee Chae-ryeong's body. Unable to tolerate this, Oh Yi-young rushed at the senior doctor and bit his hand. This incident led Oh Yi-young to leave the hospital.

After Oh Yi-young left, Lee Chae-ryeong stated that the hospital did not do well and repeatedly expressed her gratitude to Oh Yi-young.

[Photo] tvN weekend drama 'Resident Playbook'

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