【使用BGM】 Our Daytime written by shimtone ツァラトゥストラはかく語りき written by リヒャルト・シュトラウス はてなパズル written by MATSU Good Morning Sunshine written by modus 探偵の憂鬱 written by shimtone 水晶のカレイドスコープ written by shimtone the opening of a book written by ioni いちごホイップ written by yuki