Noun
(instruction) manual
君もこの手の仕事は初めてなんだろう？勝手がわかるまではマニュアル通りにやっておいたほうがいいよ。It's your first time doing this kind of work. You should follow the manual exactly until you get more experience. operations manual; basic rules (pertaining to how a job should be carried out); standards
(car with) manual transmission
Also written マニアル