Kotoko solves supernatural problems by sitting still and thinking, while Kurou watches her work and falls for her completely. The romance isn't a subplot grafted onto a mystery show, it's the actual story, built on watching someone who traded her body for cosmic knowledge fall for the one person who isn't afraid of what she is. The show trusts you to care more about whether these two stay together than whether the youkai get their answers.
Kotoko sacrificed her right eye and left leg at eleven to broker peace between the supernatural and human worlds. Now she runs an underground consultation service where youkai bring their impossible problems, seeking solutions only she can provide. Her life takes an unexpected turn when she meets Kurou, a college student whose casual encounter with a vengeful spirit reveals he's far more than a typical human. Kotoko sees potential in him, both as a partner in her work and potentially in her personal life. Together they begin investigating the tangled cases that arrive at their door: conflicts between spirits that defy logic, mysteries that demand creative thinking rather than detective work, and situations where the line between hoax and genuine supernatural threat blurs beyond recognition. The chemistry between them crackles with playful banter and genuine intrigue as Kotoko's schemes clash with Kurou's reluctant competence. What emerges is a peculiar romance wrapped around a steady stream of weird cases, each one stranger than the last, where solutions matter more than explanations.