As a software engineer, Nangong Yan traveled to a different world after having a liver attack... Nangong Yan: "What the hell kind of system is this?! Without a system wizard, I have to study everything myself!" Boom! Dong Dong~! Nangong Yan: "I know! Let's go right away!"...Nangong Yan: "You don't have a system wizard in the system, right? But why do I feel like you are mocking me?!" Looking at the skills panel...