Yeah... it gets worse. Looks like they nabbed
the description from IGN. Which was then reiterated for
the description of Shun (which is referred to as a "remake"...). And then re-reiterated for
the description of Shun ~Second Edition~ (which is referred to as
a sequel to Shun. Enough said.) And the same description was used for
Kanzenban, which basically means Yumi's Odd Odyssey is the only game whose description wasn't horribly butchered.
The sad thing is, I've seen Umihara mistaken as a boy before, and from a completely different source. There was a
minor edit war between a person called "Tempest Tales" and... everyone else, really, where Tempest Tales seemed to be under the impression that Umihara was a boy and everyone else was wrong. But, you know, obscure foreign game series, not much English-language information out there... mistakes happen, right? Except that Tempest Tales is Japanese...
It's kind of baffling that Umihara would be mistaken for male so often despite her giant boobs. The seller should've at least been clued-in when they 'shopped together that cartridge art at the very least. I can only assume it's either the short hair (which, from my own experience drawing characters, somehow takes precedence over boobs for many people), or from only seeing her in-game sprites.
EDIT: Okay, I actually forgot about Umihara Kawase Portable's existence entirely (probably for the best...), but anyway, it's
listed here, under the title "Yumi's Odd Odyssey", which makes sense as it was nearly localized under that title. It's also listed as an alternate release of the first game... not Shun......