Sanagi no Heart (Pre-serialization)

Welcome to the Demon Realm, where Meitaro, a young demon lacking magical powers, seeks to gain strength by consuming a human heart. But when he summons his prey, he finds only a frail young girl. As their fates intertwine, their relationship takes an unexpected turn... Akari Kajimoto presents a dark tale of twisted love. (Source: MangaPlus)