♂ m

The protagonist of this story starts out on the streets of Akihabara before the company he works for goes bankrupt. He decides to walk to the nearest Hello Work and has a fateful encounter...

♀ f

The main heroine of the first title, Mami is a second year student. She sports an adorable face that hides the fact that she possesses an unprecedented amount of potential power as a succubus. Wasn't interested in skinship with boys, but if her partner was the main character... Who happened to meet... read more

The main heroine of the first title, Mami is a second year student. She sports an adorable face that hides the fact that she possesses an unprecedented amount of potential power as a succubus. Wasn't interested in skinship with boys, but if her partner was the main character... Who happened to meet Mami once when they were both very young, and ever since their one and only meeting she has been trying to find him again. The average man would be literally KO'd from a single touch from Mami, but the main character will surely be fine, right? She's very shy so when she's not sure what to do she will laugh with "ahaha" to the point that it has become habit. Despite being so timid she is still a succubus that possesses an incredibly sexy body.

♀ f

One of the two heroines in the second title of the series. She is a third year student and is the Student Council President who takes her position very seriously. She is also close friends with Marin. From the start, the prudish Yuuri was against the arrival of the protagonist in the all-female cou... read more

One of the two heroines in the second title of the series. She is a third year student and is the Student Council President who takes her position very seriously. She is also close friends with Marin. From the start, the prudish Yuuri was against the arrival of the protagonist in the all-female countryside where the school is located. Has had a pure and noble look all her life. Despite what she says, Yuuri is afraid of what other people might think about her... because she secretly loves to masturbate! She's afraid that someone will find out her secret. Like all succubi, the strait-laced Yuuri possesses an amazingly sexy body. Due to a certain reason, she eventually decides to participate in a naughty lesson with the protagonist.

♀ f

♀ f

A succubus who works as a caretaker of the school dormitory, Ruka was Kouichi's classmate when they were in high school and also his first love. Due to some circumstances, on the day when they were supposed to go on their first date, they were forced to be apart and had lost contact with each other ... read more

A succubus who works as a caretaker of the school dormitory, Ruka was Kouichi's classmate when they were in high school and also his first love. Due to some circumstances, on the day when they were supposed to go on their first date, they were forced to be apart and had lost contact with each other since then. They reunited when Kouichi was brought to the village by Mami and Marin. At the end of the second title, Ruka admits to Kouichi that she is still somewhat has feelings for him and accepts his offer to participate in the naughty lesson, becoming the heroine of the third and final title of the series.

♀ f

One of the two heroines in the second title of the series. She is a third year student and is the Student Council Vice President alongside her best friend, Yuuri. Marin is a cheerful girl that dresses like a gyaru and is friendly to everyone she meets, but is especially considerate around the prota... read more

One of the two heroines in the second title of the series. She is a third year student and is the Student Council Vice President alongside her best friend, Yuuri. Marin is a cheerful girl that dresses like a gyaru and is friendly to everyone she meets, but is especially considerate around the protagonist. Unlike Yuuri, she is not very interested in doing lewd things and is a bit naive, but as a succubus she possesses an incredibly sexy body. As Yuuri's best friend she will naturally accompany her to any naughty "lessons" that she attends.