Kaoru, a 30-year-old woman who is a little confused, is an ordinary office lady working at a small trading company in Tokyo. The only thing that is a little special is that she has been living with Rilakkuma, who is lazy every day, Rilakkuma, who likes to play pranks, and the little yellow chicken who is good at cleaning. The stop-motion animation depicts the colorful 12 months that Kaoru, who has a little inferiority complex about her serious personality, spends with the Rilakkuma who live a carefree life. A gentle and bittersweet story.