Kazuki (KNY) -Younger's Links
Younger brother of Kazumi! He worries a lot about his older brother, who took care of him when they were young even while sick due to neglectful parents. He's very protective of his older brother, and often only respects his older brother.
Older brother of Kazuki! He loves and supports his little brother, and even when they were young and their parents neglected them, Kazumi would do everything to take care of him, despite being deathly sick the majority of the time.