Haru Netsuma was the younger sister of Hakua Netsuma. Haru lived happily with her older sister until their village was destroyed by an evil mage. During the attack, the mage I.R. took possession of her body and her consciousness was suppressed. After I.R. came in contact with Hakua again at the Venomania Mansion, Haru's consciousness began reemerging again more and more, forcing I.R. to keep a berth from Hakua.