When her son was a ● student, Rei married and raised him alone after divorcing her husband. She somehow managed to get him into college, but he became obsessed with theater in his club activities, neglected his studies, and dropped out. Just as he was about to join a small theater company and pursue an acting career, the company disbanded due to COVID-19. Since then, her son has lost motivation for anything and earns daily wages through delivery services. Rei thought this couldn't go on, so she invited her son on a hot spring trip.
