Ami, who has done a lot of work with a lot of trust from those around her, will be entrusted with the education of Mizuki, who joined the company as a new graduate this spring. However, although Mizuki can work, she is impertinent and has a self-paced personality, so Ami is troubled by her educator. At that time, Mizuki, who can usually do her job, was unusually working overtime, so Ami was forced to stay with her as her educator. And with her last train gone, Ami decides to stay in the same hotel room until morning at Mizuki's suggestion...
