Preparing by memorizing with 〜ておく
Grammar Explanation: Doing in advance with 〜ておく

Rize gives Cocoa a menu to memorize, as she’ll need to know it when working as a barista.
- リゼ:
- 「メニュー覚えとけよ」
- “Memorize the menu ahead of time.”
- ココア:
- 「コーヒーの種類
( が多( くて難( しいねー」- “The different kinds of coffee are numerous and difficult, huh?”
Key Points
覚
( えとけ = 覚( えておけThe base idea is 覚
( えておく: memorize it now so it is already known later.In this scene, Rize is telling Cocoa to prepare by learning the menu before she needs it for work.
Contraction chain: ておく → とく, then command とけ
ておく often contracts in speech to とく.
The command form changes おく to おけ.
メニュー is the thing to memorize
The object marker を is omitted after メニュー in casual speech.
Full form: メニューを覚
( えておけよ → “Memorize the menu ahead of time.”
よ makes the command direct
The bare command 覚
( えとけ is already firm and casual.The final よ presents it as an instruction Rize expects Cocoa to follow.