Because of a letter, Jiang Yuchen and Gao Yunyi traveled to college. They will work together to complete system tasks and defeat the NPC male protagonist. After completing the tasks, they can return to the original time period.
——
In fact, the redemption in the title of the novel can also be understood as helping the past self to make up for some regrets in the past, and now every time the regrets are made up, the key item left behind is achievement.
Purpose: friendship