It is the G-pen that seems to be analog wind. アナログ風にたぶん見えるGペンです。
* The one that I added balloon pen was uploaded → https://assets.clip-studio.com/ja-jp/detail?id=1708195
The image is written with all this pen except the upper right font.

※フキダシペンもつけたやつUPしました→https://assets.clip-studio.com/ja-jp/detail?id=1708195
画像は右上のフォント以外すべてこのペンで書いてます。
