kibishi718
I think that u should implement time skip during traveling it will make the evolution of the fungus to different stages more realistic as no way they evolved this quick in the story so a time skip of 1 to 5 months of traveling would've been sufficient to explain the evolution plus after the skip I think that it's better u show more scenes of bonding and survival skill both of them are learning in the apocalypse to develop more of the story. A little mix of slice of life, romance and action would be nice.