Sumomomo Momomo - The Strongest Bride on Earth
すもももももも〜地上最強のヨメ〜
Koushi is in high school, with no idea that a marriage was arranged for him when he was born. Then Momoko Kuzuryuu shows up: an airhead martial artist who calls herself his bride. She wants to have sex, but Koushi flatly refuses, since he has no desire to get it on with someone who looks young enough to be his little sister, and he has no clue who she really is anyway. Meanwhile, a war has broken out between the martial arts families. For Koushi, that means a bunch of fighters are out to challenge or assassinate him.
