怪人おさんたを生産したかいがありました　【アンケート　幻想郷の悪の組織と言えば？】

It was worth producing a mystery-person Osanta.

[Survey: When you think of Gensokyo's evil organization, you think of...]
• Scarlet Devil Mansion
• Moriya Shrine
• Yukarin House
• Hakurei Shrine