With the second Winter Comiket just around the corner, Blessing Software has been vigorously producing its new game, How to Raise a Boring Girlfriend. Despite Utaha Kasumigaoka and Eriri Spencer Sawamura leaving the circle, Megumi Katou and Tomoya Aki are hopeful that, by sticking to Tomoya's original vision for the game, their upcoming creation will exceed Blessing Software's previous installment. With the addition of new members Iori and Izumi Hashima, development ensues—but not without its share of setbacks. Things rarely go as planned in the dating sim industry, with numerous obstacles forcing Tomoya to decide between helping his friends or completing the game. Saenai Heroine no Sodatekata Fine draws the series to a close as Tomoya selects his final route, both within his personal life and Blessing Software.

The series follows the adventures of Sabu, a young Edo bakufu investigator traveling with the blind master swordsman Ichi. In their travels, they assist the common people in solving mysteries and righting wrongs (usually committed by bandits or corrupt officials). Sabu is engaged to Midori, the daughter of his boss, who works as a police officer for the Tokugawa shogunate. (Source: Wikipedia)

In the distant future, since the Earth has become overpopulated, efforts to find and colonize on other planets have begun. However, one of the ships, the Mesopotamia malfunctions and all but 6 of its inhabitants are all killed. the remaining 6 manage to escape to a nearby planet named Terra ll , which is similar to Earth in many respects. However, all of them are male. Therefore, as to not let their efforts go to waste, they begin to set up 6 countries and to reproduce through cloning and genetic engineering. however, there are still no women, and to make up for it they create lifelike advanced female androids called Marionettes which do everyday chores and work. However, they are all emotionless machines. But one day, a ordinary boy named Otaru finds and awakens 3 special battle type Marionettes that have emotions due to a Maiden Circuit within them. It's up to him then to teach them and allow their emotions to grow, and when a nearby country threatens with world domination, it's up to to Otaru and his human Marionettes to protect their country.

Yashiro, the ruthlessly efficient leader of the yakuza group Shinsekai, is also a brazen sexual deviant and masochist. Having been hurt by the only person he had ever fallen in love with, he now engages in strictly physical relationships. One day, Yashiro's superior assigns Chikara Doumeki, a recently released prisoner, to the role of Yashiro's new bodyguard. The stoic and observant Doumeki is also clumsy and impotent, much to Yashiro's dismay. Although Yashiro has a personal policy to not get involved with his subordinates, he finds himself strangely drawn to Doumeki, who keeps denying his advances. Despite his refusals, Doumeki finds Yashiro beautiful and wishes to stay by his side, yet he knows that he will never be able to satisfy his boss. As the two grow closer, their complicated pasts slowly begin to reveal themselves. Will their histories get in the way of their emergent feelings?