Renoir is Verso's father and there's tons of family drama and history behind how they interact.

Renoir is a magical painting of a woman's husband, Aline, who lost her son (the Real Verso) in a fire and fled into a magical/living canvas. There she painted her family to escape her grief (this being the Renour and Verso in-game). Aline and her real family are normal humans in the real world - but inside the paintings they make they are basically living gods. Renoir and Verso are aware of that fact but there's a lot more to it.