series that fits your description. It was first introduced in Dragon Quest VII

A mobile RPG and gacha title that blends classic Dragon Quest monster-collecting elements with "Magic Forest" exploration mechanics. Pet System:

In the sprawling, monster-filled world of Dragon Quest , few creatures capture the imagination quite like the — a rare, ethereal variant of the classic Bubble Slime. Officially cataloged in the Dragon Quest Monsters series as entry J185 , this gelatinous wonder has transcended its humble origins as a random encounter to become an unexpected symbol of relaxation, aesthetic gaming, and lifestyle curation.

For fans of the series' art style, the designs are handled by the late Akira Toriyama , whose "uncensored" or original concept art is often sought after for its detailed line work and whimsical nature.

– This sounds like a content pack name from a game platform or modding community (possibly Dragon Quest Walk or a fan wiki)