Sometimes I think way too much about Kyojuro's head looming in the corner of this panel

UMAI
DONUT MAN

So Sun Breathing was the first Breathing Style, right?

yes

So the core Styles are Flame, Water, Stone, Thunder and Wind, right?

uhhhhh

Cuz here he's talking about different Breathing Styles in relation to Nichirin colors (taken from the wiki page on Nichirin swords)

idk buddy