Mixed Vegetables, Vol. 6 by Ayumi Komura

Hanayu's torn between working at her family's bakery, helping out at Sushi Hyuga, and keeping up with school. Something's gotta give, and when her grades start to fall she considers stopping sushi altogether. Hayato makes a romantic (and reckless) gesture to keep her at Sushi Hyuga... But he soon finds out that a past Patisserie Ashitaba assistant is back in the mix, and this handsome baker seems to have his heart set on Hanayu too!