There seemed to be no series tag nor character tag, so they've been added. If anyone notices the new definitions already existed or are incorrectly formatted, please correct it (The series title, 魔王様、リトライ! has a comma in it as per the official website but I didn't include it as commas often don't play well with tag systems. Aku's name is just アク, but the "Aku" definition preexists for a different series).
