Talk:Kuroki Rio/@comment-25034020-20170610094447/@comment-32490983-20170716180702

his name is certainly written as  ジュリオ (jyu-ri-o), but that may not be the official romanization; after all, his sister's name is written  シエル (shi-e-ru), but the official spelling is 'Ciel'. url bars don't accept hiragana or katakana, so they simply wrote the exact translation. also, the 'l' sound doesn't exist in japanese, so they replace it with 'r' sounds - so it could be either.

unfortunately, since we don't have any proper reference material (it's not printed in latin characters anywhere), one could write his name any way they want as long as the pronunciation is still correct (julio, jyulio, jurio, jyurio, giulio, giurio, etc).