My puppy was diagnosed with a fatal virus and has to spend 3 days in the pet hospital but ...

My puppy was diagnosed with a fatal virus and has to spend 3 days in the pet hospital but there's still a high chance he won't make it. I'm so heart broken and stressed out right now and I can't stop crying. i want to take my mind off this a bit so can someone recommend me a nice heart warming or fluffy manga any genre is fine but pls don't recommend ones involving dogs or pets