This side story from the manga "Queen's Quality" tells you about a girl named Houshou Mikako who couldn't inherit the power of purifying evil spirits from her family. She had to cooperate with the delinquent Kagura Shinobu to save her friend, Yamada Toranosuke, from being eaten by an ugly monster. Will she be able to prove that she doesn't need superpowers to help those she cares about?

The adventures of mind “Sweepers” continue in this supernatural romance sequel to QQ Sweeper! As Fumi’s dangerous new powers blossom, Kyutaro might be the only one who can help her keep them under control. Then, when Kyutaro tells Fumi that he’ll never leave her side, she unexpectedly starts to fall for him!

Kyuutarou Horikita is the tall, dark and handsome… cleaning expert of Kurokado High. His classmates find him mysterious mostly because he's hard to get to know. One day in his club's room in the school's oldest building, he stumbles upon a sleeping maiden: transfer student Fumi Nishioka. With nowhere else to go and having the eyes to see spiritual dirt, Fumi will learn from the cranky Kyuutaro how to rid the school of the grime that attracts spirit-damaging bugs, and how to fight the bugs themselves. Has she finally found a place she can call home in the large house of Kyuutaro's small family of sweepers? Will her brazen goal of marrying a rich guy disgust or amuse them? And her heart, once it learns the way of purifying cleansing, will it be cleansed in return—in spite of her missing memories and her ever-looming secret?