ami, trusted by her colleagues and capable of handling various tasks, was assigned as the mentor for the new graduate, mizuki, who joined this spring. however, mizuki, despite being competent at work, had a sassy and laid-back personality, causing ami to struggle as a mentor. one day, mizuki, who usually finished her work on time, stayed late, prompting ami to stay behind as well. with no trains left, ami agreed to mizuki's suggestion to spend the night together in a hotel room until morning.
