User blog comment:Martialmaniac/Chrollo VS Hisoka/@comment-4932025-20160421183332/@comment-4932025-20160421190436

Yeah, so far we've only seen benefits from this bookmark ability, it's incredibly powerful to be able to have his hands free or to use 2 abilities simultaneously while holding the book open and having the bookmark on another page, I wonder what kind of restriction it is, it has to be something really terrible to deal with.

Maybe He has to explain everything about the abilities he uses in front of a crowd in order to use the bookmark, because he sure has been babbling a lot.