If Witch, Then Which? Vol. 2 (manga)

Although Haruka's cross-dressing may have been good enough to get him into the Eastern Woods of the Sacred Witch Academy, keeping it secret is another matter, with his everyday life turning into a dance with danger! But while he focuses on dodging clingy classmates and communal baths, others are starting to notice Maruna's powers. As the moon rises on Walpurgis Night, Haruka and Maruna are approached by the academy's most brilliant prodigy with a request to help her investigate a deeply personal mystery...