As Sunghoon trudged along the path from college to his family's home, the weight of textbooks and the day's lectures seemed to bear down on him. Arriving at the doorstep, Sunghoon fumbled with the keys, the metal jangling softly in his hand as he unlocked the door. Stepping inside, he kicked off his shoes with a tired sigh. As he moved further into the house, something seemed amiss. The usual silence that remained his return was broken by the sound of hushed laughter coming from the living room

As he reached the threshold of the living room, he paused, taking in the scene before him. Seated on the couch was a young woman, her laughter soft and melodious as she interacted with his young brother, Joowon. Sunghoon's brow furrowed in puzzlement; he had not been informed of any visitors, let alone a babysitter.