What are you talking about? Deku is NOT powerful enough to blow Orochi apart, and even when reduced to mush he retains vast amounts of power.
There's no proof that Deku would be capable of blitzing Orochi. Orochi is considered a master Martial Artist superior to the likes of Gouketsu, Iaian, Gouketsu, etc. These are characters with senses able to predict several moves in the future of targets as well as being able to predict and counter the trajectory of 33,334 individual attacks with their eyes closed. Now multiply this a hundredfold thanks to Orochi's danmaku dragon heads that each have their own eyes to see and predict Deku move.
No matter the potency of soul hax or power that Deku's attacks have, if they can't land their mark, it won't do anything. Each and every single one of Orochi's dragon heads can use the Water Stream Rock Smashing Fist, which is a martial arts style capable of reflecting attacks far more powerful that the user themselves and dish it back with 2x the force, which would be 25.42 Exatons (enough to one-shot someone of Deku's durability). Now stack on durability negating slicing shockwaves with massive AoE.
Any quirk ability Deku throws would just integrate into Orochi's biology, allowing him to produce a superior version in terms of power and speed. For example, after getting hit by Fa Jin once, each of Orochi's heads would be able to use a faster and stronger version of it.
Orochi can also shoot heat blasts that would likely melt Deku on contact as they scale above the heat of Electric Catfish Man and Vacuuma's natural lightning.
And if by some chance Deku can deal enough damage to Orochi in a single instance to blow him apart, Orochi's remains still have instant-win properties:
Meaning that if even one of Orochi's remains splatter and touch Deku, the fight ends.
Overdrive attacks, while Deku is holding back to not kill, punch holes through and tears the limbs off of people superior to himself. Shigaraki with his adaptive growth specifically designed to completely neg attacks that were previously harming him got a hole punched through his chest by an Overdrive attack. Orochi’s stat difference is not exactly saving him from the damage Deku is causing him.
Everyone here seems to be under the assumption that Deku is hitting Orochi with 12.72 exatons. That is incorrect. Fa Jin alone is what gets Deku to 12.72 Exatons. Gearshift by itself provides a strength amp alongside the speed amp, and he then combined the two together to create attacks that can blow limbs off while not even building up max energy.
Orochi’s durability is only 2x higher than the Prime All Might value that Deku was crushing easily while holding back, and already scales above due to the feat he’s scaling from being when he was severely tired and at the absolute dregs of his energy. Nothing about Orochi implies that he has the durability to not get holes punched in him just like Shigaraki did.
42.37 petatons from Weakened, dying, OFA embers Deku << Base Full Cowl <60x< 100% Deku <5x< Fa Jin << Fa Jin + Gearshift
Evolved Shigaraki is already surpassing the 2.54 exatons value with his durability to literally reject all damage to himself and Deku with just Gearshift beat his ass then punched a hole through him with Gearshift + Fa Jin. Orochi’s durability being 2x a value that Deku stomps out of existence casually and already scales above heavily is not impressive. He is getting holes punched through him just like Evolved Shigaraki, and that was all Deku holding back because he wanted to save Shigaraki from his personal beliefs.
As for the absorption, Deku can spawn Blackwhip from inside his body to remove the gunk or he just doesn’t let it touch him. When he punches, the holes he leaves are clean cut created by the subsequent comparable wind pressure that blows everything away, and he is moving wildly faster than Orochi can keep up with in the first place to let bits of his opponent touch him.
Where is it shown that Orochi can copy biological abilities just from being touched by them? He can copy every single facet of your being from getting punched once? Where is that shown? His technique mimicry is the only thing on his profile that implies he copies anything, and that extends solely to martial arts. Quirks are not martial arts, that’s like claiming Orochi can copy Deku’s hair color and turn into a perfect clone of him if Deku so much as touches him. Can Orochi copy Tatsumaki’s telekinesis if she touched him?
Also Deku wears
gloves so Orochi isn’t even touching him in the first place to copy his biology, unless it works over clothing and when his body is getting punched across the battlefield with gaping holes left behind.
Deku resists heat on that level in a far weaker key.
If your win condition is on the basis that Deku will allow some part of Orochi to touch him when he is blitzing Orochi so hard that Orochi doesn’t even know what’s happening, then that doesn’t seem solid to me. Orochi cannot copy his abilities, they are not martial arts, and even assuming a small bit of Orochi gets onto Deku, he rips it out of himself via Blackwhip strands inside his body and he’ll act fast because Danger Sense will alert him that something on his body is attacking him. His Blackwhip strands are also gearshift boosted so he can remove any part of Orochi from his body faster than Orochi can perceive. Again, assuming any bits of Orochi get on him when that has never been an issue for Deku prior thanks to his speed.
