-When coming to bugs, Renzo is completely useless.
-Renzou is actually the fifth son of the Shima family, not the third.
-Renzou's pastimes and talents are: smiling, lying, fake politeness, buying dirty books even if a girl is working on the cash register.
-His nickname in Elementary school was the 'Erotic Demon'.
-He is trying to be more refined now that he is in High School.
-His hair is actually brown tinged with pink.
-His favorite words are 'not suitable for print'.
-He spends his days off on dating girls.
-His average bath time is 30 minutes.
-Renzou's favorite music genres are: Rock, pop, R&B, hip-hop, American/European and Japanese.
-The first half of his name, "Ren" (蓮 / 恋), means "lotus/love".