"I want you to do it with your hand..."
His touch is so hot she could burst. He leaves, and she misses him immediately.
Momono is worried about being a virgin.
She was unsure of how to use the sex toy her coworker gave her, and her handsome, unsociable coworker, Kikuo ends up finding it!
After making a mistake at work, Momono heads to the sauna to relieve stress. She ends up getting overheated, and Kikuo comes to her rescue! He loses his cool when he sees Momono vulnerable and unaware of his feelings for her!
He teases her with forceful hands, and his hot breath stirs something inside her... She even admits that she has no experience with men!
After all, she's almost thirty years old, a virgin, and doesn't even know how to use a sex toy!
(Source: MangaPlaza)
— Description from AniList community (anilist.co).