"Endure my pressure for the time it takes an incense stick to burn, and the first part will be complete."
The two boys said nothing, gritting their teeth as they endured it.
Shintaro felt the Chakra in his body draining rapidly, only to be replenished just as quickly, an endless supply.
"This Impure World Reincarnation is truly interesting. If I were alive, how could I possibly maintain this level of pressure for so long?"
Moreover, he had to control the pressure precisely to ensure he did not harm the two children. Otherwise, there would be serious trouble.
Seeing that the two children were holding up fairly well and seemed to have adapted somewhat, Shintaro immediately increased the intensity of his pressure.
The moment they caught their breath, it was cut off again, leaving both Shisui and Itachi feeling immense pressure.
Neither knew whether they could endure this first stage of training.
"Come on, you two. If you can't even pass the first stage, how will you face the trials ahead?"
Shisui and Itachi were already drenched in sweat. After all, they were still children.
They might have been genius boys, but before Uchiha Shintaro's pressure, they were still far from enough.
They held on for only five minutes before Itachi was the first to collapse. Shisui lasted a while longer, but eventually fell limply to the ground as well.
"Hahaha, not bad, you two brats. Your foundations are solid—not the kind of superficial strength."
After helping the two boys up, Shintaro looked at them with satisfaction. "Not bad. You've got some of my old spirit."
"The future of the Uchiha Clan will surely belong to you. To possess such strength at your age, I can rest easy about the Uchiha's future."
Itachi and Shisui were overjoyed to receive his approval.