Smg4 but If My Oc Was In It (After The Movie's)

This story includes an oc of mine called SLG4 (short for Super Luigi Guardian 4. He is supposed to be SMG4's younger brother) And a cat named Mylee! (that was turned into a demon-cat by smg4 in a random ch. Ai chat I have-) They both are new additions to the crew.