チャレンジ研究所, way to go on passing 100 subscribers!

I'm happy for coming the mail from Youtube!

Hi チャレンジ研究所,
Let's have a round of applause, because you did it! More than a hundred people have subscribed to your channel. Now's the time to get out there and shout it from the virtual rooftops!

ツイッターとかやってないんだけど・・笑！！

I'm going to updete Youtube channel from now on.

更新日：2021/03/13