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.
but it's still your responsibility 
to help me with my homework!
pero también es tu responsabilidad 
ayudarme con mis estudios!
pero también es tu responsabilidad ayudarme con mis estudios!
mas você tem que me ajudar
 com a lição de casa também!