[trademark keyword]: Characters fly by Sunrise Airlines. Sunrise is the studio that produced the series.
Ryo Saeba's catchphrase is the word "mokkori". The word means "bulging", referring to a large body part (usually female) popping out under cloth.
Ryo actually has no birthdate as he doesn't remember it. So, whenever someone asks him, "What is your birthday?" He says Kaori's birthday which is 31st March of 1967.