全部で360種類くらい本数あるので、全部揃えるとかとてもとても・・・。
コピックは、どの色を持ってるか記録するアプリがあるのでコレクター的にはとてもやばいですね！(笑)

There’s a total of about 360 markers, so collecting them all would be asking way too much...

Copic has "an app":https://apps.apple.com/us/app/id638007892 with which you can log the colors you have, which makes it very dangerous, collector-wise! :-)