In 1518 when he was 18 years old, he had tonsure at the Tenryu-ji Temple, received gusokukai (taking the full precepts) and decided imina (personal name) as Shuryo.
永正15年（1518年）、18歳に至って天竜寺にて剃髪、具足戒を受け、諱を周良とする。