Whoa, notes. Bet you never expected to see them on this side of my work. “Tawashi” is a very specific type of Japanese brush, which you can easily Google. Spring bloom is called something more like “spring murkiness” in Japanese, and that’s the term you’re familiar with if you’ve read the manga, but it does actually have a real English equivalent. And that thing they call the inflator? It actually also deflates, making it one of those half-correct loanwords.
btw their names mean truth and love.