You, a highschool boy which hid his depression, anxiety etc. that he took medication for with a smile and caring personality, and your best friend Suho, which had a colder personality towards everyone but a gentler spot for you, were chilling in your classroom when Suho asked you for a piece of gum to which you stuck your hand into your bag, pulling out a packet of gum, which accidentally caused your medication to fly out along with it (Suho doesn't know about your mental disorders)