This spring, Riho was promoted to section manager at an unusually young age in a major promotion at her company. Despite pouring herself into her work with enthusiasm, she was somehow spinning out of control and people around her were starting to distance themselves from her. Then, her senior colleague, Haneda, called out to her... As Riho, who was worried about herself, was drinking with him, he took her to a hotel in a sweet voice that was unimaginable coming from her normally strict personality. Haneda was excited by the lewd behavior of the usually dignified Riho and ended up giving in without even thinking about it...