Ryooo's attitude was extremely serious, this lead to the action of severing his penis with a razor because of his firm belief that it was "source of sexual desire," and it was a hindrance to learning (It was called "Rasetsu", to cut one's penis off [in order to keep sexual desire off mind]).
その姿勢はきわめて真剣なもので、寛文2年（1662年）にはついに「愛欲の源」であり学道の妨げであるとしてカミソリで自らの男根を断った（羅切）。