Board Thread:Questions and answers/@comment-254594-20170407104708/@comment-30711988-20170407131837

It's not his last name, it's an alias. Like Ragna's "Bloodedge", or Trinity's "Platinum".

"Honoka" is written in kana, so it's impossible to say what it means. Generally, it's a female given name, speculation: but I myself think that it's supposed to be "仄か", "faint; vague; indistinct".