Nice project! I liked the mix of pet simulator with visual novel, it really makes you attached to your pet, the music also really fits with the style, and the art is cute and smooth. The text has a good font, but it would be better to read if had some drop shadow or stroke on it. The evolution aspect of it could have a little more weight on the gameplay, but was fun to test out different skills with the slime. If you decide to keep working on that project i would love to see the endings with different routes and interactions. I would pay for play a final version. You have a good idea in hands!