i don’t think someone has posted this so have this gem from vol.17.
suga: in our 1st year, for about half a year i called asahi “shafusu”* in my heart.
asahi: no but you called me this out loud a few times. (in bubble suga: “shafus.. ah, azumane-kun!”
*in chapter 149 instead of “yoroshiku onegaishimasu” asahi said “onegai shafusufu!” because he was nervous. i have no idea if it has a an actual meaning lmao but suga sure liked it.