Entry in the back of uke at the beginning of a technique.
In kihon-waza there is a clear separation between the omote and ura side, and tori only moves on the chosen side. Tori should be able to see uke's back when entering into ura.
Mnemonic: ura with an "r" as in "rear"
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Terms used:
Omote, Uke, Tori, Kihon-Waza
