Suzuki Haru, an ordinary male high school student (transvestite) in City A, traveled to a different world due to an accident.
He was penniless when he was unfamiliar with the customs and customs of another world. Later, he discovered that he seemed to have powerful powers and started causing trouble everywhere. After being hated by countless people for causing too many troubles, he was hunted down by a group of hired high-level adventurers.
When he was forced into a desperate situation, he suddenly burst out with huge energy. None of the chasing adventurers survived. He left in a hurry without knowing what happened.
Soon after, he was discovered by the magician lizard man Lantu, who claimed to be "the most loyal subordinate of the Demon King".
When Lan Tu arrived at the Demon King's Castle, he was told that he was the Demon King that Lan Tu and many of his subordinates were looking for.
Unwilling to accept the fact, Suzuki Haru did not want to admit that she was the Demon King, so she ran away and became an adventurer, and met her adventure partners Pease, Yu, and Darklin.
From then on, Suzuki Haru began to live a "happy" life while hiding her identity as the Demon King while taking risks with her friends.