The first step: first spread out the place where there are markers on the leather.
Step 2: Prepare two cotton swabs and alcohol.
Step 3: Gently wipe the marks on the leather with a cotton swab dipped in alcohol.
Step 4: where the imprint is thick, you can rub it back and forth with a little force.
Step 5: After wiping with alcohol, most traces have been removed.
Step 6: Wipe it gently with a wet flannel again.
Step 7: Finally, dry it with clean toilet paper.
Step 8: After treatment, remove the watercolor marks on the original leather.