Setsuna Scarlet Crush

When the passionate and analytical Dr. Takao Ameku receives a surprise invitation to meet her favorite idol, Setsuna Yuki, it feels like a dream come true. But the joy quickly gives way to mystery when, shortly before a major concert, Setsuna’s cherished ruby necklace—her self-proclaimed lucky charm—is stolen under strange circumstances. Without it, Setsuna claims she can’t perform, rattled by stage fright and self-doubt.

With the concert hanging in the balance and a distraught idol refusing to sing, Dr. Ameku takes up a different kind of case. One not of illness, but of intrigue.

The clues are as strange as they are suspicious: memory-erasing roses, secret backdoor exchanges, and performers acting oddly forgetful. Teaming up with her sharp-tongued assistant Yu “Kotori” Takanashi, the cheerful Mai Konoike, and reluctant helper Mia Taylor, Ameku must dissect a tangled trail of deception before Setsuna’s confidence, and career, falls apart.