In a world where magical girls are real and battle monstrous threats, devoted magical girl otaku Tōma Rui achieved the impossible: he married his retired idol, the legendary magical girl Mirakuru Miku. Living together as husband and wife, Rui enjoys a blissful married life with the cool and somewhat aloof Miku, unaware that their peaceful days are about to be upended.

A severe shortage of active magical girls forces the Ministry of Magic to call upon former heroes. Miku, now thirty years old, becomes a prime candidate for reinstatement. This prospect brings interference from ministry officials and the reappearance of her former teammates, complicating the couple’s romance. Rui must navigate his dual role as both a loving husband and a fan who knows his wife’s secret identity, while Miku struggles with the demands of her past life and her desire for a normal home.

As the story unfolds, new magical girls—including a younger, high-school-aged rival—enter the picture, and Miku debuts a redesigned costume. The couple faces personal challenges unique to their situation, including intimacy issues and the inevitable friction between a retired hero and a devoted fan. Across three collected volumes, the series blends sweet domestic moments with the high-stakes action of magical girl battles, exploring what it means to be a husband and wife when one partner literally fights monsters.