Yoshizawa Natsuo♂

At the age of 18, he moved to Tokyo in order to attend university starting this spring. He's been taking care of both his younger brothers ever since they lost their parents at a young age, so he is good at taking care of all the household chores. However, as a result of that, he has become what is commonly known as an old man, and is often said to be 'meddlesome' and 'noisy'. He's quite emotional and sensitive.

[Translated from official website]