Sumomomo Momomo: The World's Strongest Bride

High school student Koushi Inuzuka is intelligent and wants to work as a public defender. Unfortunately for our wonderful guy, he came from a family of martial artists, and his father only speaks violence. When Koushi was just a baby, his father made a deal with his strongest foe to wed Koushi to the daughter of his former adversary-turned-friend. The strongest martial arts clan on Earth is claimed to be created by the union of the two blood lines. Jump ahead: Koushi is a high school student who is unaware that his marriage was prearranged when he was born. Enter Momoko Kuzuryuu, a loli martial artist, sugar bomb, and self-declared bride of Koushi (the strongest on Earth, no less). Her request for sexual contact is met with Koushi's flat denial because he has zero desire to have sex with someone who could pass for his younger sister and doesn't have the foggiest notion who she actually is. In the meantime, there is a conflict between the martial arts family. This signifies that a lot of fighters are trying to challenge or kill Koushi. As if that weren't awful enough, our protagonist also suffers from a combat fear as a result of a horrific event that happened to him when he was a child. Momoko must now defend her "husband" using her superhuman fighting abilities. Will the two lovebirds endure the hardships that lie ahead of them? What's more, will Momoko get her way and receive a child from Koushi?