Lucky Beast is a character from the anime/game Kemono Friends. Kemono Friends is initially an RPG mobile game by Nexon and got animated in Jan 2017.
Japari Park is a large zoo home to extant species, endangered species, extinct species, and some legendary creatures. Due to “sandstar”, a mysterious substance emitted by a volcano in the park, they have all become anthropomorphized into girls (referred to as “friends”)
So lucky beast here is one of the beast held in Japari Pack. Muumin, the pepakura designer said he think lucky beast is the cutest beast of all so he made into a paper craft.