Does Bai Le's smiley face pen need carbonless ink?

Not necessarily, according to personal preference, but carbon ink will block the pen. If you don't plan to change the ink of this pen in the future, you can. Remember to soak the capillary of the pen in warm water for two weeks, and be sure to cover the pen cap after use. In the case of congestion, this will be better. And this has nothing to do with the brand. I remember that there was a brand in Japan with a patent that was not written, but it was hard to say who was carbon. If you recommend ink, it depends on your price. The best is fish and water, the price is several hundred. Cheap is the hero, and there are many in the middle price range. It depends on your personal choice.