Shôken at first served the Aki of western [[Tosa province|Tosa]] but entered into a secret understanding with [[Chosokabe Motochika]] (along with fellow Aki retainer [[Ogawa Shinzaemon]]) and helped the latter defeat the Aki in [[1569]]. | Shôken at first served the Aki of western [[Tosa province|Tosa]] but entered into a secret understanding with [[Chosokabe Motochika]] (along with fellow Aki retainer [[Ogawa Shinzaemon]]) and helped the latter defeat the Aki in [[1569]]. |