Those who have played Fire Emblem Heroes or have some familiarity with it (or similar mobile titles) should know what a “whale” is. Basically a big, big spender.
Amusingly, an actual whale–as in the sea mammal–can be spotted in one of the Fire Emblem games… Specifically Fire Emblem Fates.
I was tipped off by @anasofiadeandat, who commented about seeing an unidentified sea creature in their My Castle. Being the curious sort, I immediately set off to investigate. Apparently, they saw it in the Nestrian-style castle, which makes sense as it’s surrounded by water.
However this wasn’t the only sighting. Around 2 years ago, a video of this creature was posted by succboi43 on YouTube. The video is a bit blurry and shaky, but you can clearly see something big, moving purposefully, in the water.