Every article has a name, that's just how a wiki works. When making an article the naming is usually obvious, it's the name of the topic. There may be cases where the article's name may not be obvious and requires more effort to come up with. Use the title you see fit and if you're still unsure contact an admin. In the event the title is incorrect the article can be renamed.
Character Pages are named after the character's English name. The name from the Japanese versions should be mentioned in the opening paragraph but we use the name from the English version whenever referring to the character.
Article Sections should be named for the topic of the section. Many Sections are uniform between articles but any unique sections should have straightforward names, don't try to come up with clever titles. Use simple, to the point names for all sections and subsections.