The game is not fully finished and nothing wrong with that. It has a strong base for future gameplay and a nice artstyle. I would suggest seperating the character stats per character and maybe allowing more convenient visits to both see their current appearance and interacting in more ways.
I do have a question, will this game be fully focused on weight gain with minor muscle growth mechanics or will both be supported in future updates?
Keep up the grind, you're doing good development ;)