Sigh it's a shame.
Anyways, the manga states that Sakura's punches release chakra upon impact NOT reinforce the punch. Meaning before she hits a target chakra is released in a burst causing the devestation. With this logic NORMAL chakra shouldn't have hurt Kaguya
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As you see above Chakra is released at the point of impact NOT reinforced behind the punch
@At Im still Robin
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Gai's attacks work by using Speed and friction to cause devastation which is why he can harm others. No chakra used in his attacks at all. As proven in other threads I always use manga scans to prove my point as I do read the manga and not work off opinion
So as I told you guys before Prove me wrong OR normal strength punches from a teenager is strong enough to hit Kaguya lol