Traveling Through Time and Space to Deliver Supplies to the Ancestors of the Anti-Japanese War

Please Travel Back to 1937 and Have a System to Provide Supplies to the Soldiers.

I Want to See How I Can Bring Supplies Back to the War Years and Protect the Country.

For example, similar to the protagonist, he has a space, or there are supplies in the system, including some firearms and ammunition, medicine, clothes, food, etc. Then help the heroes of that time and become the light in the hearts of the people in that dark age.

Those Who Are Fighting the War Should Not Bring Bright Swords, the System Only Lists the Heroine.