Kyouganeke No Hanayome summary:

The "Kyokane family" is a prestigious family of degenerate magicians that has been in existence for a thousand years. The current head of the family, the eccentric KYOKANE Kuroro, is brought to a bride who has a "secret" behind her pretty appearance,A bride with a "secret" behind her pretty appearance...?If you decide to "live together," break off the yoke, the causality, and everything else, and be together!This marriage battle fantasy, written in a clear and elegant style, is about to begin!