He hadn't been boasting, he felt incredibly bad that his mother had died, and he'd been told all of his life that it was his fault. He might've loved his mother, more importantly, she might have loved him.

Then again, maybe not.

"The Shinra Banshou can grant any wish Miharu has." Yoite confirmed. "I want him to make it so I never existed. It can rewrite the past. It's a very powerful technique." He said, by way of explanation.