My Hyperdimensional Granary

Armed with a futuristic system and an infinite spatial pocket, a young woman travels back in time to a war-torn frontier to stand beside her great-grandfather. In the face of brutal historical odds, she uses high-tech shields and secret supply drops to silently protect his frontline unit. Risking everything in a harsh era that isn't her own, she fights to keep her ancestor alive. But can she alter the tides of the past without losing her way back to the future?