When he was 16, the developer, Takahashi, was working in the fisheries industry while doing a part-time job preparing fish. During that time, he noticed that in the processing stage, a large portion of the fish was discarded — about 60–70% of each fish was thrown away just to make sashimi. What’s more, fisheries companies even had to pay money to dispose of this waste. This made him start questioning the situation: “Isn’t there a way to make better use of this waste?” That thought stayed with him every day.

One day in college, he became fascinated by a “mounted fish specimen” displayed in a local fishing tackle shop. Though he had overlooked them before, the beauty and strength of the specimen caught his attention, and he began researching taxidermy. He discovered that the process was somewhat similar to leather-making, and at that moment, he thought: “It might be interesting to make a wallet out of fish leather.” From there, he began his research and experiments. At the time, there was no information or specialty shop dedicated to fish leather, so he studied general tanning techniques on his own and repeatedly experimented with applying them to fish skins.

After about a year of research and trial and error, he succeeded in developing a fish leather he was satisfied with. Thanks to much support, even after many failures, he was able to launch his brand in 2021.