Fuuma's name was written as 桃生 封真. The first kanji on the name Fuuma is 封 = fuu, means 'seal'. While the next one is 真= ma, means 'true' or 'real'. In short, his name means 'sealed truth' which is applied specifically with his role in several ways that involves his fated role as Kamui's twin star and that his true destiny was known only by a few.The name Monou is composed of the kanjis 桃 = momo means 'peach' and 生 = nama that may means 'raw' or 'birth'.