Hiouden: Mamono-tachi to no Chikai

A PC-98 RPG from Wolf Team with an isometric perspective. It later saw an enhanced Super Famicom port. The main character of Hiouden is Richard A. MacIntyre, the titular Scarlet King. His castle has been taken over by the Macaulays, and everyone in the castle was executed except him. He fled to the hanging gardens in the castle to regroup. There he discovers Beatrix, a dryad, who grants him the ability to summon demons. Thus begins his quest to retake his home.