This is “Piano,” a scrapped character introduced in the afterword of the Rockman Megamix new edition. Since the book is still in circulation, I can’t show everything here, but below is the English translation of the text from the attached image.
Right panel 1:
"Just as Rockman https://t.co/Wk2pUcYa68
『ロックマンマニアックス』第四回より（1997）
ゲストコーナーが同じフォーマットが続きマンネリ化してきたと思ったので、この回はお題の本人不在で進行することにしました（自由過ぎる）
新装版ロックマンマニアックス下巻収録
紙の書籍と電子書籍で発売中
2ページ
The Robot Masters from Rockman 1 are all “Right Numbers,” created by the same inventor.
In my manga, they sometimes rush to help Rockman, spend their days off playing together, or return to Dr. Right’s home for maintenance from time to time. https://t.co/H3omrILxXj
3ページ
My idea of him was that he’s a calm yet passionate guy. But since he didn’t have that many appearances, it may not have come across clearly. https://t.co/hK2I4icZHl
ようかいとりものちょう13（2021）
妖怪捕物帖乙 冥界彷徨篇 壱
あたしも一緒について
行っちゃダメかい？
大崎悌造/ありがひとし 岩崎書店刊
紙の書籍と電子書籍で発売中
2ページ
For Shadow Man, I imagined him as a ninja serving as a lord’s close retainer.
For Shade Man, I pictured him more like a butler serving his master.
However, since both of them are Wily Numbers, it was important that they not come across as purely straightforward types, but rather https://t.co/HgRm0lx5sT
It was meant to show that he was so overwhelmed with emotion that he couldn’t speak properly.
This comes from my own childhood memory—when I once stood before someone I deeply admired, I was so nervous that I couldn’t find the words to speak. https://t.co/MVlTMKjg66