I can't remember fully of anything, since it was back in 2020, but it was kinda like a thing on the author's Twitter where the idea came from. No knowing if it was someone else or the author who was hinting at the age-up back then, but I definitely know that's where the idea came from. No hate if it doesn't happen, but it was just kinda the assumption a lot of older readers had, especially since we were blessed with art and short stories of older Tsubaki (っ.❛ ᴗ ❛.)っ I commented just cause it's been so long, so I do understand the title, but some time in the past the idea was put into my head, I guess(?) not sure how to explain lol. Sorry for the word wall.
Thanks to everyone who responded thooo! It's good to know now instead of waiting for it never to happen!
Why is he still a kid ?! I remember someone saying they planned to age him up but WHENNNNNN?! no judgement tho just I let it sit for a few years, and it's still the same.