Hiiyo Ikusaba (戦場 緋夜) is a supporting character in Nanana's Buried Treasure, voiced in Japanese by Tomokazu Sugita. The series' music includes "【MAD】Ryuugajou（Nanana's Buried Treasure龍ヶ嬢七々々の埋蔵金OP ）", "Ryuugajou Nanana no Maizoukin - Ending HD Creditless".
