I've finished it a while ago but I couldnt upload it due to internet problems, so here you go.

A Future Written as Regret - 悔やむと書いてミライ - Kuyamu to Kaite Mirai - Composing the Future with Regret by mafumafu
Vocals: mafumafu
Sekai Vocals: Nightcord at 25 am + Hatsune Miku
Alt Vocal(1): Kanade Yoisaki
Alt Vocal(2): Mafuyu Asahina
Alt Vocal(3): Ena Shinonome
Alt Vocal(4): Mizuki Akiyama
Chart by AegbGo