My Husband Is Not My Husband

Takuya Kujo is not only handsome but also intelligent and charming. In contrast, Fuyumi Takano is your typical plain Jane, yet she has caught Takuya's eye! Unexpectedly, he proposes, eager to build a happy family together, and Fuyumi is more than happy to oblige. However, Takuya's behavior soon grows increasingly suspicious. Despite her best efforts to suppress her doubts, Fuyumi finds the strain unbearable. Her overwhelming happiness begins to morph into a bottomless pit of despair, leaving her to question: is my husband really my husband?! This heart-pounding love story is filled with non-stop suspense!

(Source: MangaPlaza)