Things to be aware of when it comes to toilets in the mountains, and one thing that is often misunderstood is the "water-soluble tissues" that are often seen these days.

This does not mean that burying paper in the ground will immediately decompose it naturally (in the soil). In fact, for paper to decompose naturally, it takes many years, especially after being buried deep in the soil where microorganisms abound. Water-soluble paper is only effective in sewage systems or toilets equipped with equivalent facilities. Conversely, if water-soluble paper is discarded in the mountains, it dissolves in rain and sticks to rocks and soil, making it difficult to clean and, in the worst case, impossible to retrieve. This unrecoverable paper is often found scattered in secluded areas such as trail junctions and rest stops, affecting not only the aesthetics but also the surrounding ecosystem. While burning paper to ashes with a lighter after use is an option, it does not burn completely immediately after use and poses a risk of forest fires, so this method is not recommended unless you are very experienced. As a general rule, when discarding used paper outside of mountain huts or public toilets with collection or incineration facilities, it is best to carry it home in a sealed bag and then return to the appropriate location to dispose of it. I believe that this is something that needs to be promoted and spread by each hiker and by people who work in the mountains, so that they can enjoy their time in the mountains more comfortably.

Some people may think that pocket tissues are not mountain gear, but the more we use things casually in our daily lives, the more we appreciate them when we are in the mountains. When you look at this tissue case, you realize that "with a change of perspective and a little modification, it can become convenient in the mountains," and in a sense, this is the origin of "OGAWAND."