Megвђ™s Monster Switch Nsp [update] (eshop) -

Players control a nearly invincible monster named Roy who must protect a young human girl named Meg in a world of monsters.

The specific phrasing in your query is common on gaming news and download sites: Meg’s Monster Switch NSP [Update] (eShop)

Meg’s Monster is a story-driven, turn-based JRPG developed by . Players control a nearly invincible monster named Roy