Ishida and Lisa crash into a fantasy world with one simple plan: conquer it! Ishida is a massive pervert seeking a harem, while smart Lisa just cleans up his messes. They build an evil army but only recruit complete weirdos: a masochist sword lady, a powerful mage terrified of lizards, and a deadly assassin scared of kittens.

They try to take over the castle, but the idiot royals accidentally hire them as brave heroes to fight the Demon Lord! Honestly, Ishida's crazy team is way more evil than the demons. They just want to steal the loot and rule the world themselves!