Can't Forget, Can't Forgive

Existence Part 2. After the nightmare becomes true, Gumi decides to do something highly insane- change the past. But everyone knows that meddling with time is a very dangerous thing... What will happen? What will be the consequence for her mistake this time? Also the sequel to MCWAMB. I know, hate me. Blegh. I get it. But read before you murder me, please.