りを かえ
kario kaesu

Godan Verb (su)
Expression

1. to pay back a debt

Godan Verb (su)
Idiomatic Expression

2. to have one's revenge; to settle a score; to get back at someone

おぼえてろよ。いつか りを かえしてやるからな。
oboeteroyo. itsuka kario kaeshite yarukarana.
I will get even with you someday. Remember that.