Jang jung shin

Jung Shin is a psychiatrist who lives in an apartment building... and his apartment is next to Haeya's... and these apartments don't have soundproofing... so every night Haeya hears Jung Shin masturbating, and the sound bothers her because her job requires her to wake up early... so a fight breaks out between them because of Jung Shin

Jung Shin falls in love with Haeya and helps her...

He had seen her before on television when they were broadcasting footage of a bus crash... where Haeya was crying hysterically as she chased after the bodies of her family members: her mother, father, grandmother, and younger siblings.