Minako Kirishima and Shizuko Osaki are superior and subordinate at the same workplace. Minako is intensely dedicated to her work, while Shizuko has a more forgiving and tolerant personality, accepting minor mistakes. Both women carry a strong sense of responsibility at work, yet their personalities are complete opposites. Despite this, an undeniable attraction has begun to grow between them, giving rise to new and intimate episodes within the office environment.