Ms. Muramata's Secret 1: The kind-spirited Muramata holds a secret that no one at her workplace knows. Following yet another mistake made by her subordinate Kaji, the two head off from work to spend a stress-free night out drinking. Due to their usual lounge being closed for the night, at Muramata's suggestion, the office pair head over to her apartment. While in the comfort of her own home, Muramata reveals to Kaji her "youthful foolishness," and the two discover the pleasures that Muramata's secret holds. Ms. Muramata's Secret 2: After a night out with their colleagues, they end up at a hotel. Wrapped in lust, the duo inch closer towards realizing how powerful a connection can be made through a shared confidence.

Muramata's Secret 3: At work a bunch of paperwork need revising. Muramata takes that task on herself and sends her staff home. Kaji however refuses to leave. He wants to pamper his senior, and Muramata accepts… Momose Knows: The four heavenly queens of school, an unapproachable challenge. When one of them asks you for help, you help! But what is this... she wants to learn how to make her cock bigger!? What?