@MiiaBestWaifu Not sure about an image off your computer, but if it is an online image, right-click on the image and copy the image location. Then paste it into the comment box. Highlight it and them press the "Image" button and you are set.
Watch it just be her future sight/clairvoyance and she dodges it next chapter. Not like she would die from it anyway since this isn't that type of OP MC.