The maid Lilith, hired to look after young Yuuri and his family's mansion, seems highly suspicious: she is too good to be true. Every dish she serves turns out to be delicious, the whole residence sparkles after she cleans it, and all the clothing has given off a pleasant scent since she started doing the laundry. Furthermore, her devilishly beautiful eyes only serve to heighten Yuuri's suspicions. Is Lilith perhaps a witch or a sorcerer? Yuuri cannot figure it out. But despite his misgivings, Yuuri has to live with Lilith as he tries to unravel the mystery behind her otherworldly charm.—MAL Rewrite

Yuuri is the owner of a small estate in the countryside. When a new maid named Lilith suddenly appears in his life, he is determined to find out the truth about her. Although her identity and purpose are unknown, she works unnaturally hard and her skills at cooking and laundry are so perfect it's almost scary. In addition, her purple eyes... It's like they're about to take you in. He thinks she's so incredibly mysterious that she must be up to something. And he's so suspicious that he can't focus on anything else, which is a problem. This is a story about a lonely boy and a mysterious maid developing a bond little by little.—Crunchyroll