Q: Who arranged to get Rider’s "Mystic Eye Killer" contact lenses at the end of Sakura’s route? And was the creator of those glasses Aozaki Touko?

A: Touko-san seems to pop up everywhere... "Ah, for inquiries about Mystic Eyes, haunting ghosts, or troubles with ungrateful little sisters, please- please call Garan no Dou~"

Fate/complete material III: World material - FAQ with Nasu: Servants, p.133