>>12885939In Japanese, "Youkan" can mean either a mansion or a jelly-like food, with slightly different spellings. It's called a Gateau to try to keep the silly pun in place.
It's also notable that in Japan RageCandyBar and Lake of Rage was a similar pun, but they didn't bother trying to localize it. (although one of the localizers later said that the candy bar was almost called "Cake of Rage", but the idea got shot down)
