Original title: 尽きぬ若さの呪い (Tsukinu Wakasa no Noroi)
Pixiv description:
This is a manga published at Reitaisai 14 about Sumireko's past, in an imaginative narrative. And kind of dark.
It was written based on the information at the time, so there are probably many parts that differ from the current canon. Please understand... (That's all)
It's a shoddy piece, but I hope you enjoy it, even if just a little.