Is there a novel for this?? <3

There is! but sadly, the English translation only goes up to chapter 5 (￣∇￣"). The original goes up to 182 chapters (plus a few extras that seem to be free?). Anyway, here are the links:

English: https://www.novelupdates.com/series/im-the-brave-puppy-that-will-save-the-villainess/

RAW: https://page.kakao.com/content/63545356