Ten years after her husband Soun's passing, Hana Tendo gets a letter from her late husband's best friend, Genma Saotome. Unaware of the promise the two made each other to unite the schools of Anything Goes Martial Arts with a marriage between their scions, she gathers her sons Katsumi, Naoki, and Akio to defend their home against the mysterious strangers. Except it turns out Genma's child, Ranma Saotome, is a beautiful, nervous, polite young woman. At least one of her sons seems quite taken with her. A Ranma AU where the Tendo sisters are brothers, Soun was the one who died, and a host of other changes to canon. Genma's actually an empathetic and supportive father, Kodachi Kuno is the eldest sibling, and the parents don't immediately throw their kids together to be engaged! Inspired by The Adventures of Guykane by ThrashJazz.