Yori thought he’d seen it all. After tackling some of the most critical missions of his career, he’s ready to relax — until a new case drops right into his lap. This time, it’s personal. An unknown bunny girl has set her sights on Yuka, leaving only an obscure trail behind. Is one of Yori's own friends somehow involved? Are they secretly waging war against each other? Or worse... Is there a fourth bunny girl on the loose?! The stakes have never been higher as Yori dives deep to uncover the truth. But it won't be that simple. Each bunny girl has their own secrets — and their own favors to ask of Yori. With their mischief, charm, and ulterior motives, they'll keep Yori on his toes and pull him into unexpected twists and turns. What could those mischievous girls be up to now?