The Night Without Shadows(2022)

Geurimja Eomneun Bam

When junior knight Roselyn is rescued from the bottom of a cliff after an ambush by an enemy kingdom, her brother Calix is relieved – that is, until he learns that she's lost her memory. Now, she behaves like a child, eats like a horse, and wields unbelievable strength. But something's not quite right...

(Source: Manta)