Hayato catches a cold. Mikoto, Minato, and Gakuto are eager to care for Hayato and handle the household chores. Even when they run into the Kirishima family on their way to a trip, they keep Hayato's condition a secret, not wanting to worry them before their vacation. 
I'm his brother...
Soy su hermano mayor…
Je suis son frère…
Ma io sono suo fratello...
Sou o irmão dele, poxa...
Я его брат!