寝食 しんしょく
shinshoku

Noun
Suru Verb

1. bed and food; eating and sleeping

ない弟子 でしとは 寝食 しんしょくをともにし、あらゆる武術 ぶじゅつのノウハウと秘伝 ひでん つたえる制度 せいどだ。
uchideshitowa shito shinshokuo tomoni shi arayuru bujutsuno nōhauto hiden'o tsutaeru sēdoda.
Apprenticeship is a system where you eat, sleep and live with your master and are taught various martial arts know-how and secrets.