A streamer in the Past

I hide among the players after becoming the global boss as I look for gaming world secrets. I am going to do whatever it takes to transform this world because I am the only real monarch. Guilds? Players? Bosses? They are all simply means to an end for me to reach my objectives. I’ll cut whatever you bring into pieces. I discovered that I had a lot more stuff in my inventory than other players on the first day of the game. A Shura Secret Codex, an Achievement Manual, and a very enigmatic bracelet are also included. I was unsure of the source of these gifts. Additionally, I was unsure of what led to the system bug. I was simply aware that this was the beginning.