The protagonist, Sakimori Reito, was an orphan who lost his parents at a young age.

As an orphan, Reito journeys to the Sakimori family, his father's relatives.

This family is a lineage of bodyguards dating back to the Edo period, an unusual family where every member is an elite bodyguard.

There, Reito developed his skills, and while aspiring to become a bodyguard, he also swore revenge on the murderer who took his parents' lives.

Then, one day, upon Reito's return home after completing his training abroad, his grandmother, the family matriarch, assigns him a mission.

It was an utterly preposterous mission: to cross-dress and protect the President's daughter, who has an intense aversion to men.

―――――This is a somewhat mistaken love comedy, between a young lady who develops romantic feelings for the cross-dressed Reito and awakens to her yuri side, and a boy who must walk a tightrope, knowing that if his true gender is discovered, the young lady might very well kill him.