It can be repaired, but it is recommended to find a professional to repair or replace it. It's hard to restore yourself to its original shape. The specific repair methods are as follows:

1, you can pull out the nib yourself, and then buy a new nib and plug it in.

2. If you can't buy a suitable pen tip, you can use pliers to clamp the pen tip together and rotate it, clamp the original left and right phases on both sides into the upper and lower phases, and then adjust them to the same plane.

3. You can find a professional pencil repairer to repair or replace it.