'Dear Isamu Sir, I just wanted to write to you that we are doing fine. We had stumbled back to your place by accident but didn't want to disturb you quite yet. Just know that Metal is slowly doing better. I think anyway. There's still a lot of work to do but I'm sure one day he'll be greater than he ever has been. I hope you are doing well yourself and look forward to being in your teahouse again. Make sure to save some milkshakes for us! - Plant'
Isamu knew he received a letter, but it wasn’t written in Braille. He had to call Shio over for some help.When he heard the contents, the old man beamed in delight.“I’m so glad to hear that they’re doing fine!” he exclaimed. “Oh, and Plant could write now. That’s a huge milestone for the boy. I’m so proud!”“The Metalkid seems to be improving...” Shio commented. “Have I told you about Reploids yet, Ojii-san?”“Oh no, no. You haven’t. Is that an other-universe term too?”“Er, yes.” It’s best to let the old man think so for now. “They’re robots with human free-will. They’re free to grow without Robot Master limitations.”“Fascinating! Wait, that means the brothers came from a different world? Well, well, now everything makes a ton more sense! Aaah, if only I knew this earlier. Maybe they would still be around.”The ninja didn’t think so. “I’m afraid not, Ojii-san. The bakemono would still consider them as foreign entities, and thus they can’t stay for long.”“So desu ka...” the old man frowned. “I suppose that part of anime logic applies too. I’ve heard plenty of stories that take that route. Visiting is fine, right?”“Yes.”“Then please tell them that they can come have a milkshake anytime! I miss them dearly and I’d love to catch up with them again. Oh, they don’t have an address. How are we supposed to pass the message?”As an old saying goes: when there’s a will, there’s a way. Shio replied, “I could ask around for help. But first, let’s record your message.”