Nekopara Chibi -

That's a great starting point! refers to the super-deformed, cute, small-headed, large-eyed versions of the characters from the Nekopara visual novel series (Vanilla, Chocola, Coconut, Azuki, Maple, Cinnamon, and Shigure).

Here are a few useful pieces of information based on that term, depending on what you need: nekopara chibi