Although Kawaii's taijutsu was astonishingly powerful—so powerful that he had nearly broken through the defenses of Shisui's initial Susanoo form—before the Fourth Form Susanoo, over a hundred meters tall, he seemed as insignificant as an ant.
Even if Kawaii could still shatter Susanoo's defenses at this point, he would need the ability to fly—flying over a hundred meters upward to reach the Susanoo's core, where Shisui was located.
When Susanoo entered its Fourth Form and became a complete giant, its wielder would rise along with its body to the head beneath the Crow Tengu Helmet, ultimately remaining within a diamond-shaped protective barrier on Susanoo's forehead.
If, against the first three forms of Susanoo, one could still exploit gaps in its defenses to destroy it, then once Susanoo entered the Fourth Form—an incomplete form infinitely close to the Perfect Form—the only way to harm its wielder was to defeat that terrifying giant head-on.
In the recorded history of the Shinobi World, only Hashirama Senju, the God of Shinobi, had ever accomplished such a feat. After all, he was universally acknowledged as the strongest man in the Shinobi World.
As for unrecorded cases, they likely dated back thousands of years, to the great war between Indra and Asura over the inheritance of the Ninjutsu Sect.
In other words, Shisui, with his Fourth Form Susanoo activated, was practically invincible at present.
The only thing that could defeat him was the rapidly depleting ocular power in his left eye.
"Even my Mangekyō Sharingan can't detect his whereabouts now. It seems he hid himself the moment I activated Susanoo's Fourth Form."
From Susanoo's head, Shisui looked down over everything below. He could see the Kumogakure ninja beyond the sea of flames in the distance, still trying to contain the fire and salvage supplies. He could