Im Nayeon never knew she would get inside a Psychiatric Ward and fall in love within 5 days with a Japanese girl who has opened her heart—the first person to ever talk to her and ask her if she can hug her to reassure her that she’s there for her, Hirai Momo. With a rejected heart, the long haired girl smiles reassuringly to her that it’s okay—she just wants her to know what she feels before she leaves. As they leave and try to recover, Nayeon realizes she already has fallen in love with someone beforehand, ‘her first first love’, her friends, Yoo Jeongyeon and Park Jihyo, would quote. Apparently, she’s the daughter of a famous Japanese Neuropsychiatrist in Gangnam, which is her doctor.

“Don’t tell me that you have a kink with Japanese girls,” Chaeyoung sneers at the oldest girl with a disgusted look.

"I think i like the better me of not knowing that I love someone," Nayeon whispers to herself as she looks at Sana, completely whipped.