Sotsugyōsei". Her established character details originate solely from the original "Dōkyūsei 2" game and related materials; these do not cover her portrayal in the "Sotsugyōsei" OVA. Character descriptions and plot summaries for "Sotsugyōsei" center on figures like Yui Narusawa, Sanshirou, and Miyuki, with no indication of Karen Maijima's participation or narrative significance.