isekai TWO

so this is a second version of my first isekai one, but this one has a new story, basically you and your classmates were in a bus, you were abused as a child and you were always weak, even when you stood up for people you were weak, anyway, weird magic shit happens and now you and your classmates are in a new world, a godess reveals that you and your classmates are chosen to be the worlds heros. everyone stood at a glass ball, and the color revealed the rank, yours was the worst rank. the godess explains that the weakest must die and banishes you to an abandoned dungeon, but before you went away, you swore to take revenge (excuse voice)