A somewhat interesting first chapter but some things bother me:
How the mc not hear what class rep say? She told him about the storm before he gets distracted by the pet thing. Did he ignore her just because? In the same note, why bother warning him (and us, the readers) about the storm if in the end nothing happened because it?
Why did the mc let his phone get wet by the rain? Is waterproof? But then he put it in his pants pocket and enter to the pond. Did the phone can also endure being sumerged?
And the one that bothers me the most: why did the mc put the phone in his pocket to search for the pet? Wasn't the game just a phone game? Why he search in the real world like is the normal thing to do? Did those pet are real and living creatures that habit the world togheter with humans? If its like that, why there aren't pets roaming around, be it as tamed/captured or as free monsters/waifus?
Like I said, interesting first chaptet but I hope the author make the story have at least some sense.