Drinking completely with 〜終わる
Grammar Explanation: Completing an action with 〜終わる
Chino explains that for coffee fortune telling, after the coffee is completely drank (finished drinking), fortune telling is done on the remaining patterns.
- チノ:
- 「飲み終わった後に残ったコーヒーの模様で占うんです」
- Step:
- 「① 飲みおわる」
- "① Finish drinking"
In Chino’s dialogue, 終わる is used because finishing a drink is the normal completion of the action of drinking.