Eva behind Sachiel's core and rib bones. She punches, dashing against the surface of the core and smashing the bone. She punches a second time from above. Finally, she seizes the rib bones.
Reichu: A continuity problem with EVA-01's hands here… She suddenly goes from holding onto his arm and shoulder to being all set to punch.
Keisuke-kun: Is Sachiel's core kinda stretchy? It seems to turn into an oval while 01 punches it.
Reichu: The camera is in a static position superior to Sachiel's core… I think we're just seeing his chest get thrown to one side or the other, and his core moving with it.