1. It's used to cast spells on a shinki, which cannot be done with their canon name. (A shinki's true name is simply the kun-yomi of the kanji character used to name the shinki.)
2. You can link a history, if one is available on fansites or a fan wiki. In general, we would like to have a clear outline of canon events involving/affecting the character, as well as any known backstory for the character. We don't expect you to go beyond what is available in your canon. For characters with little material for a history section, rather than padding the history section, we recommend that you focus on writing a well-developed personality section to demonstrate that the character is playable regardless of having little history/backstory.
no subject
2. You can link a history, if one is available on fansites or a fan wiki. In general, we would like to have a clear outline of canon events involving/affecting the character, as well as any known backstory for the character. We don't expect you to go beyond what is available in your canon. For characters with little material for a history section, rather than padding the history section, we recommend that you focus on writing a well-developed personality section to demonstrate that the character is playable regardless of having little history/backstory.