Himawari is spending time helping Chinatsu with her Valentine day gift, but Sakurako feels like a pain when Himawari is not around checking her homework.
Of course. Himawari's 
good at teaching me...
Ya veo. Himawari es buena enseñándome...
Ahora entiendo. En el fondo, Himawari era buena enseñándome...
É... A Himawari é 
boa em me ensinar...