The eroge game "Love Fantasista!"—affectionately known as "LoveFan"—is a critically acclaimed masterpiece, beloved by eroge fans for its saccharine heroines and beginner-friendly difficulty.

However, the main heroines' words, actions, and true natures harbored numerous issues, leading them to be colloquially dubbed "Seriously Dangerous Heroines," and the game offered a plethora of bad endings.

One day, an exhausted office worker in his thirties inexplicably reincarnated as the minor male character, "Asagiri Haku."

In the game, Haku was an utterly insignificant presence. While a BL ending was available through a hidden route, in the main story, he was just a background character with virtually no plot involvement.

Haku resolved to live out his days as a background character in the world of LoveFan, but fate had other plans.

Despite being a mere background character, for some inexplicable reason, he often found himself pursued by the main heroines, and frequently became their confidant, leading to rather intimate situations...

"This isn't the LoveFan I know! I'm just a background character, so stop hitting on me!"

Haku struggles to foist these Seriously Dangerous Heroines onto the original protagonist (with a look of utter exasperation).