My Sister and Giant: A Young Lady is Reborn in Another World.

Series

Hinako, is one reincarnated from another world, she was called "the smallest giant" after she and the giant Eiris were united as sisters because they have the same goal; to find their family. Hinako searches for her sister, who could also have been reincarnated, and Eiris' siblings. However, in resolving a certain request, a gentleman from a church catches her eye, and is forced to take a risk. A story about a young girl and a giant, two people of different race and birth, searching for their "loved ones", begins in this otherworldly fantasy of reincarnation that unites them.