Enrique Guem from Flower Boy Next Door definitely a bipolar disorder. You see throughout the drama him not being able to sit still and never being able to focus on one thing. You also see him with sudden mood changes which are abnormal.
Bipolar Disorder, also known as manic-depressive illness, is a brain disorder that causes unusual shifts in mood, energy, activity levels, and the ability to carry out day-to-day tasks.

Synopsis-
A single woman living alone begins spying on a neighbor after she falls in love with him at first sight.

Starring: Park Shin-hye; Yoon Shi-yoon; Kim Ji-hoon

WORLD BIPOLAR DAY 2022