One fateful evening, Kanzaki Misuzu is unexpectedly whisked away to a parallel dimension by eerie, dark hands. Awakening in a vast meadow, she realizes she's landed in a realm governed by RPG rules, complete with a status interface tracking her well-being and mana reserves. Surprisingly, her mana levels are off the charts! While she adapts adeptly to her surreal surroundings, the solitude weighs heavily on her. Encountering valiant knights, Kanzaki recognizes the value of her contemporary knowledge—especially in the realm of healing. Armed with intricate insights into human anatomy at a cellular level, she becomes renowned as the unmatched 'Black Healer.' Embarking on a quest to navigate this mystical realm, she seeks a pathway back home, all the while peeling back the enigma surrounding a enigmatic figure from her dreams.