Information: Name

This flame guy has two names. He's first known as Keikoku, a name gifted by Yuan. When he first joined Shiseiten, he changed his name to "Hotaru", but after the group broke up, he used the name Keikoku again. Four years later, he met up with Kyo and finally realized that he really enjoyed the times when he was with Kyo and Shiseiten, and that hanging around them had changed him, and he found something important.

"It's Hotaru. Call me Hotaru. Hotaru had found something important that Keikoku never had."

Hotaru

Hotaru literally means "firefly" in Japanese. Instead of Kanji, SDK Hotaru's name is written in Hiragana. To be updated soon. >:O

Keikoku

Keikoku's name is written in Katakana, so I haven't found the exact meaning of it. However, according to Yuan, the one responsible for giving out this name, Kekoku is the name of a planet that represents god of war that shines reddish. Yuan thought it suits him and represents intelligence, strength and the light of fire's soul. Little Hotaru seemed to like that name, so Yuan decided to awarded him the name "Kekoku", and Keikoku had been training to make a perfect technique called "Keikoku Kien" so that he wouldn't be ashamed of getting that name..