He had already appeared in front of Sesshoin.
Sesshoin could not die yet. She still had value.
Shirou decisively turned back to defend her, throwing the sword in his hand.
Robin Hood clearly had not expected Shirou to react so quickly, but he had achieved his goal of diverting Shirou's attention—though the sword had easily killed him.
Lip had recovered, and her enormous claw was about to strike Shirou.
Sesshoin raised an orchid finger and lowered her head slightly. Holy light shone upon Lip.
"Humans possess three souls and seven spirits, making ten divine treasures. Since you cannot comprehend your own Buddha-nature, you should behold the evil within yourself and draw near to nirvana. Om Abira Ube Saba Ha."
Lip's claw turned into nothingness. The blow that should have crippled or even killed Shirou was dissolved by Sesshoin just like that.
Lip was utterly astonished. This was no longer just her hand turning into nothingness—it was her entire body!
"What... is this? I can't maintain... my physical form?"
"All things in this world are illusions. Thus, returning you—a being made solely of information, without flesh—to your original state is effortless. Though even so, this is quite a laborious task. Archer, are you all right?"
Sesshoin let out a soft breath and spoke gently to Shirou.
"I-I'm fine. What was that? Sesshoin, what is going on?" Shirou asked as he looked at Lip's increasingly ethereal body. It looked as though she was about to disappear.
The powerful Alter Ego seemed to have no room at all to display her abilities before Sesshoin.
And wouldn't this really violate the arrangement with BB?
"Ah—!" Lip struggled to break free from the spell's restraints, but it seemed useless.
"Don't worry. This isn't an offensive spell. It is merely dismantling Lip. The time has come—"