Watanabe Yu transmigrated.
The good news: he got a golden finger.
The bad news: that golden finger is an organ in his body, and it has an utterly unimaginable ability: if he gets physically intimate with a woman, she will fall in love with him uncontrollably.
And if he ever loses his virginity, the ability will go completely out of control, and every woman he has touched will kill one another over him.
Just as the villainous heiress of a powerful conglomerate suddenly forces him to marry into her family,
the literature club president wants to be his "good dog," while the aloof beauty admired by all cannot help falling for him...
To resist the fate of marrying into her family, Watanabe Yu plays along with the girls while biding his time, all the while protecting his virginity.
When Watanabe Yu tears up the marriage contract, the young lady presses a gun to his heart:
"You're a parasite living off other people's love. What right do you have to talk about freedom?"
He takes hold of the barrel and presses it against himself, laughing as he coughs up blood:
"A parasite? How pitiful, young lady... You can't even admit that you need a Host."
