A stately, huge, beautiful mansion... Where is this?Opened the door of the mansion with a nervous heart, and the moment

勇者哈羅德接到了打倒魔王的委託，但卻發現魔王竟然有五位之多，究竟哈羅德該如何完成這項任務，旅途中又會發生什麼事呢？