Rain and Underwear
In Japan, there is a saying, "Hide your head, but don't hide your butt," which means that even if you think you are hiding well, your important parts are still visible. I think that underwear symbolizes the real you, which is not usually visible.
On a strange rainy day, the everyday scenery may be washed away, and the inner hearts of various people and monsters may come into view along with their underwear.
Rain and Underwear
In Japan, there is a saying, "Hide your head, but don't hide your butt," which means that even if you think you are hiding well, your important parts are still visible. I think that underwear symbolizes the real you, which is not usually visible.
On a strange rainy day, the everyday scenery may be washed away, and the inner hearts of various people and monsters may come into view along with their underwear.