It is a pen that is trying to draw comfort.
For when you do not want to clear the main line, such as when the paint watercolor-ish.
The color is diluted and the correction strengthens.
描き心地がもったりとしているペンです。
水彩っぽい塗りの時など、主線をはっきりさせたくないとき用。
色が薄めで補正強め。