The protagonist of this work is 30-year-old Sada Seiya who works in a general trading company.He is a handsome guy and the ace of his department, but he has a secret that only Uno Daiki, a junior at university and company, knows.That is the character who naturally likes to be cool, and implemented the setting of “having a girlfriend” who has been dating for many years, and ended up becoming a “half-virgin=0.5D”.In this way, he fell in love again after 10 years and received love guidance from Uno, who had 8 girlfriends.

Sada Seiya works in the Hisishan Shoji Media Communication Department, which is called the “Handsome Guys Department”.He has always maintained the image of having a long-term girlfriend, but in fact he has not had a formal girlfriend for more than ten years and is a so-called dabbler virgin.

It is this kind of person who falls in love again after ten years.Since he has completely forgotten how to start a relationship, Sada seeks love guidance from Uno Daiki, a junior in the same department and a junior at the university!

Will Sada's love affair after ten years have any result?

Sada (Masari Wada) has a unrequited love for Rina (Ayane Kinoshita) and wants to get close to her. However, the director Hamamoto (Takuma Wada) has announced a ban on office romance. Coupled with various other reasons, smooth progress has never been possible.

Junior Uno (Sasamori Yuki) arranged a social gathering for Sada with Rina's department, the Propaganda Department.

Under Uno's guidance, Sada tries to get closer to Rina.

At a cocktail party with the Propaganda Department, Sada (Masari Wada) wonders whether his junior Uno (Yuki Sasamori) likes Rina (Ayane Kinoshita).

Sada, who was betrayed by Uno who was supposed to support him, adopted a cold attitude towards Uno and accidentally got into a quarrel.

Sada, who was unable to concentrate on his work because he was worried about Uno and Rina, made a big mistake in his business.