Video 1: You can use unlimited anime characters that are fully compatible with Unreal Engine.
Video 2: Vroid Anime morphs, let’s add wink and happiness (Subtitled)
https://dev.epicgames.com/community/learning/tutorials/wjJV/unreal-engine-let-s-quickly-setup-the-vroid-anime-character-in-unreal-apply-the-animation-and-morph-subtitled