Abumaru is a devoted monk and steadfast follower of Lady Kaoru, stationed at a temple visited amid a blizzard. Tasked with enacting her will without question, his loyalty manifests through decisive action, wielding formidable combat skills marked by raw strength, swift reflexes, and lethal precision to dismantle threats.

In a pivotal confrontation, he confronts and slays Lord Rokuyoji, exacting vengeance for Kaoru’s suffering—a testament to his resolve in defending her honor and redressing wrongs. The narrative later shifts to an alternate reality where figures mirroring Kaoru and Abumaru tend to an ailing woman, implying a thematic link between their roles in a dreamlike sequence and their hinted counterparts in waking life.