I'm Getting Married to a Girl I Hate in My Class

A secret arranged marriage forces two hostile classmates to share a home while hiding their new relationship at school.

Synopsis
The Anime Lad

Saito expects to inherit his grandfather's corporation. Before that can happen, he must marry Akane, the classmate he dislikes most. She feels the same. They begin sharing a home while keeping the marriage hidden at school. This requires daily cooperation from two people who regard compromise as an avoidable expense.

Super Eyepatch Fox

Saito and Akane are hostile classmates placed in an arranged marriage. Their families expect them to share a home, while nobody at school can learn the truth. Meals and chores become contests. Public conversations require restraint. Neither teenager intends to make the arrangement easy for the other.

Gigguku

Saito and Akane already turn every classroom encounter into a contest, and now their families expect them to run a home together. The marriage must stay secret at school, so all that hostility needs an off switch neither of them possesses. Every meal and household negotiation becomes a fresh romantic emergency!

Father's Basement

An inheritance tied to a teenage marriage requires a heroic tolerance for family meddling. The useful part is that Saito and Akane dislike each other equally. Neither holds the easy moral advantage. Their secret household gives the bickering practical stakes because food, chores, and school appearances still need to function.