1383565e_Harvard_Aikikai__eet_or_both_left_feet_forward_
[Ai-hanmi] Ushiro Ukemi (or Koho kaiten) [相半身] 後ろ受身 (後方回転)
The backwards roll.
Harvard Aikikai
Stance where the Nage and Uke are both standing with either both right feet or both left feet forward.