Kuzuha Togashi/Relationships

Tōka Takanashi
The neighbor who lives above her apartment. Toka too admire Kuzuha's cooking and ask her if she wants to go to Italywith her (though this is stopped by Yuuta) Kuzuha is also the person keeping an eye on her brother and his girlfriend Rikka.

Yuuta Togashi
Her brother, she is usually seen to be helping him with his household chores. Kuzuha knows alot about her brother and about his chuunibyou past. She was given the task of keep in an eye on him and Rikka from rikka's sister Toka.

Yumeha Togashi
Her younger sister, whom she usually look after on behalf of Yuuta's order.

Satone Shichimiya
It is clearly shown that when Satone goes to Yuuta's apartment presumably for her dinner, Satone recognizes her immediately and hugs her.