Samantha is a charming and popular girl with a hole in her heart that leaves her feeling lonely, despite her many friends and talents. When L, an extraterrestrial being disguised as a teenager, joins her school's music extracurricular, he feels an inexplicable pull towards her. As they spend time together, Samantha begins to feel her heart healing, but their time is limited as L must return to his home planet. On the day of their separation, L confesses his love for Samantha, leaving her to grapple with the intensity of his feelings and the pain of their imminent parting.