Tsukasa Tachibana, a student enduring his third attempt at college entrance exams, remains oblivious to his simultaneous role as a test subject for three witches from a sorcery academy. His routine academic struggles collide with supernatural trials when Chipple, a White Witch assigned to win his authentic affection; Irene, a rival witch plotting to enslave him; and Liv, a Black Witch commanded to eliminate him, infiltrate his daily life. Amid escalating magical conflicts, Tsukasa and Chipple develop a mutual romantic bond that persists even after she fulfills her initial mission, defying her school’s directives to remain with him.

Tsukasa’s resilience against Irene’s manipulative schemes forces her into an unlikely alliance with Chipple, while Liv abandons her lethal objective after forming an unexpected attachment to one of his classmates. These transformations emphasize his unintentional capacity to alter others’ trajectories, redirecting their ambitions and loyalties.

A hot springs excursion introduces Minori, the 18-year-old daughter of the inn’s proprietress, whose quest for emotional fulfillment beyond her fractured family life further positions Tsukasa as an inadvertent anchor for those navigating personal and mystical turmoil. Though peripheral to Minori’s struggles, his presence underscores his role as a catalyst in intersecting conflicts.

The witches’ trials conclude with Tsukasa’s survival and Chipple’s rejection of institutional expectations to preserve their relationship. His journey transitions him from an ordinary examinee to a pivotal figure in resolving supernatural crises, while non-magical academic and personal developments remain unexplored.