Contrary to those clichéd plots, there were no immediate symptoms of physical discomfort after the injection.
On the contrary, Uchiha Yato felt incredibly strange at that moment.
He could clearly sense a powerful new chakra within his body. Like a spring of clear water, it flowed endlessly through his meridians, making his already abundant vitality grow even more vigorous.
Or rather, this newly emerged chakra was like a key, unlocking some latent power within his body and allowing it to awaken more fully.
The sensation made Uchiha Yato feel incomparably comfortable, as though every cell in his body was cheering with joy.
However, just as Uchiha Yato was immersed in that wonderful feeling, Madara Uchiha beside him gritted his teeth in fury.
He stared fixedly at Uchiha Yato's blissful expression, jealousy and resentment erupting from his heart like a volcano.
Back then, Madara Uchiha had gone to great lengths to verify his hypothesis.
Not only had he needed to engage in a life-or-death battle with Hashirama Senju, an opponent as powerful as a monster, but he had also needed to constantly conserve his chakra during the fight while racking his brains to guess his opponent's tactics and weaknesses.
In the end, despite giving it everything he had, Madara Uchiha could only barely escape Hashirama Senju's pursuit by faking his death.
What was more, throughout that long process, he had paid an unimaginable price to fuse his bloodline and evolve his Eternal Mangekyo Sharingan.
Fortunately, heaven did not disappoint the determined. After countless efforts and attempts, Madara Uchiha finally succeeded.
But now, seeing Uchiha Yato obtain such tremendous power so effortlessly and act so relaxed about it, Madara Uchiha could not help feeling bitter and unwilling.
Without comparison, there was no harm. Once there was comparison, imbalance would arise in one's