I Work as a Cow in the Hotel

I was reborn, but when I was supposed to achieve great things, I was reborn lonely. The new world treated me miserably, and I treated the new world like my first love. This is a world where you have to play games after graduation. If you pass the level, you will be great. If you fail, you will be reborn in the lottery and pray not to be born in this world in the next life.