After returning to his apartment, Shinji immediately deactivated his Mangekyō Sharingan. Then, wincing through the discomfort in his eyes, he put away his mask and Red Cloud Cloak.
Next, he took a shower to wash off every trace of scent on his body before lying down on his bed.
"It's happening again."
This time, the discomfort in his eyes lasted a long while.
It wasn't the same piercing pain as before, but the worsening discomfort still warned him that he'd used up too much of his Dojutsu.
"Ugh!"
He sighed.
He'd been working hard ever since he'd come to this world, spending every moment either studying or training.
But he was still stuck in an eight-year-old's body, and there was only so much strength he could build up.
Against demons with all kinds of strange Blood Demon Arts, he could only rely on the power of his Mangekyō Sharingan. He had no other choice.
And every time he faced an invasion, he had to use his Mangekyo Dojutsu several times.
This time, he'd used Susanoo and Amaterasu one after another. They'd worked brilliantly, ending the fight swiftly and cleanly, but the cost had been enormous.
He'd also spent his Dojutsu sealing the memories of more than a hundred survivors.
And just now, he'd relied on the power of his Mangekyō Sharingan to force Deidara into a dream.
Deidara wasn't some ordinary townsman. Forcing him into a dream had taken a tremendous amount of Dojutsu.
After all, Shinji still wasn't skilled at constructing dreams, and his use of genjutsu was still at the brute-force stage.
"I have to find a way to get an Eternal Mangekyo Sharingan as soon as possible!"
He made up his mind.
Even with two pairs of Mangekyō Sharingan under his control, he could keep his Dojutsu