1. Take off the cap of Li Xiubi, buckle it backwards at the back end of the pen (the end without the nib), tighten it and rotate it counterclockwise, so that you can take off a plug at the back end of the pen.
2. Remove the cap of the smooth ink bottle, and then remove the small cap at the tip of the ink bottle.
In this way, you can add ink to Li Xiu's pen. When adding ink, be sure to add ink slowly, and then tighten the rear plug of the calligraphy pen.
4. Write a few times, and the ink will come out and you can use it.