I'm not sure specifically as it could be a very unique or indie visual novel. It might involve a story set in the Nusantara region with elements related to the mystery of the Bermuda Triangle, perhaps including strange disappearances, supernatural events, and characters' adventures in that context.
You could try looking on popular visual novel platforms like Steam. Many visual novels are available there. Another option is to check out some indie game or visual novel websites. Sometimes, developers also have their own official websites where they sell or distribute their works.
It's because the combination of the unhappy expression and the cute features creates a unique charm. Maybe it evokes a sense of vulnerability or adds an interesting contrast.
The Trail in furry comic might feature various adventures and encounters of furry characters. Maybe it involves exploration, challenges, and friendships.