When lazy, erotic-game loving Mahiro Oyama is transformed into a girl by his younger scientist sister’s experiments, he becomes determined to change back, only to recognize that with his new opportunity, he may want to turn his life around.

Nick used to be a member of a veteran adventurer party, helping his undisciplined friends with the accounts whenever he could. But what was his reward? Getting accused of embezzlement and kicked out by the leader he respected. Before long, he finds a few other jaded adventurers and kindred spirits, and together, they form their own unstoppable party!