Across the Three Realms

You can travel through online games ~ and you can also use a system to travel to other worlds, mythical beasts? Oh, I'm looking after the house a lot. Holy weapon? Sorry, I only have a bunch of scrap metal that seems to be called "artifact", a panacea? I don't think I have this, but I only have the "Holy Pill". Alas, my time travel seems to be too miserable! It doesn't matter, the most awesome thing about me is the system, all the magic horses in the three realms are accidental. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.