Witch On The Holy Night [010012a017f18000][v0][... -

It looks like you're referencing the for the visual novel Witch on the Holy Night (also known as Mahoutsukai no Yoru or Mahoyo ).

Set in the late 1980s, it follows Aoko Aozaki, a high school girl who becomes an apprentice witch, and her interactions with another witch, Alice Kuonji, and a boy named Soujuurou Shizuki. Witch on the Holy Night [010012A017F18000][v0][...

It is part of the larger Nasuverse , sharing the same world as Tsukihime and Fate/stay night . It looks like you're referencing the for the