Fighting All over the World: I Level up Alone!

[Ten thousand worlds, time travel, upgrade flow, collection flow, pet flow, pretending to be a pig and eating a tiger, harem? ] A mysterious portal, a thrilling journey, weird plug-ins, a girl hiding a knife in her smile, a strange creature with a lively and dangerous personality, and a dangerous journey to another world begins. I didn't prepare an outline for saving, so just write it down! Just like the protagonist, experience! I need more experience! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.