Hotori Arashiyama loves solving mysteries, yet the one she can’t crack is why each solution to a problem seems to spark another. After school she takes a job at the Seaside Maid Café to pay off a debt, and her friend Toshiko, who knows all about running a maid café, offers to help. Toshiko is reluctant to work there until she learns that Hotori’s childhood friend Hiroyuki is a regular customer. While Toshiko has a crush on Hiroyuki, Hiroyuki secretly harbors feelings for Hotori, who herself keeps a mysterious crush hidden. The tangled web of affection and obligations creates a lighthearted, slice‑of‑life story filled with charming misunderstandings and budding relationships.