Finn transmigrates into a sword-and-sorcery world as the heir to a count's estate, only to find himself saddled with a debt of a million. His creditor is his fiancee, while his fake younger sister is the princess he is duty-bound to serve. War soon follows, and the righteous male lead, the succubus Loren, campaigns across the land.
The creditor's daughter, who is trying to make their marriage a done deal, is taking serious action.
The princess knows his true identity, but still keeps her feelings bottled up.
The maid serves Finn's family, but hides her secret desire to steal a taste because of their difference in status.
The assassin girl, who defected because of Finn's kindness, is working hard to hone her invisibility magic.
The female knight, who has earned Finn's appreciation, doesn't want to remain merely his adjutant and is planning to use illusion magic.
The new druid girl is always secretly researching love potions with Finn, away from her forest colleagues.
Finn: Wait, what are you doing? If this keeps up, the internet's iron fist will come down on us!