The first stage was reverse mapping the energy circuits.
Orochimaru had designed a device that could display the energy circuits inside Urashiki Otsutsuki's body as a three-dimensional hologram.
It sounded very scientific, but the actual procedure was torture! They had to implant miniature probes at every chakra node in Urashiki Otsutsuki's body to monitor the flow of energy in real time.
Those probes were as fine as hair, but each insertion felt like a red-hot iron needle piercing his skin and burning along his nerves all the way to his marrow. Urashiki Otsutsuki convulsed with pain, but the Thunder Shackles suppressed his power, making even unconsciousness an unattainable luxury.
"Look, this circuit connects his Byakugan to his spatial perception region." Mayuri Kurotsuchi pointed at a glowing line on the hologram. "This explains why he can use Yomotsu Hirasaka with such precision! His Byakugan isn't just for seeing. It's also directly connected to his spatial coordinate calculation function."
"Interesting." Orochimaru recorded the data. "Momoshiki Otsutsuki's Byakugan doesn't seem to have this function. His Rinnegan are in his palms and lean more toward energy manipulation. This suggests that differences in individual abilities within the Ōtsutsuki Clan may already be determined at the genetic level."
The second stage was reverse engineering the remains of the Fish Basket.
Orochimaru and Mayuri Kurotsuchi dismantled Urashiki Otsutsuki's damaged Fish Basket into its most basic energy rune structures. To understand the function of each rune, they had to test its function on Urashiki Otsutsuki! That meant manually activating certain residual functions in the Fish Basket and observing his reactions.
Once, they activated a rune related to chakra theft. Urashiki Otsutsuki instantly felt the last trace of power in his body being forcibly drawn out. It felt as though someone were using a straw to suck the life