Kuma means "bear" in Japanese. When "relaxation" is converted into a Japanese loan word, it is "リラックス(Rilakkuma)". When "クマ" is added to the first three katakanas, it becomes "リッ "
The origin of relaxed bear: modern people are busy, and it is inevitable that they will want to relax a lot. Because of this, they created a bear that looks like nothing, but is very easy to relax, and named it "rilakkuma".