Summary
Shimizu Yu, a struggling high school student burdened with family debts and misfortune, stumbles upon a mysterious Universal Spiritual Contract System that grants him a Contract Summoning Scroll. Hoping to summon a powerful creature to turn his life around, he inadvertently calls forth not a demon or beast, but his cold and strict teacher, Natsukawa Yui—who is secretly a succubus!
Caught in a web of supernatural mischief, Shimizu must navigate his newfound relationship with the alluring Natsukawa, fending off debt collectors, unraveling dark mysteries around his classmates, and surviving the chaos of everyday school life. Meanwhile, Yui struggles to maintain her double life as a feared vice-principal and Shimizu’s reluctant servant. With humor, intrigue, and a hint of danger, this story unfolds as an unexpected journey of personal growth, friendship, and perhaps something deeper between the unlikely pair.