Taiyo Hayakawa

Taiyo Hayakawa was the younger brother of Aki Hayakawa who was killed by the Gun Devil.

Appearance
Taiyo was a young boy who heavily resembled his older brother.

Personality
Taiyo was innocent and fun-loving, caring a lot for his older brother and parents.

Eternity Devil arc
Taiyo, though sick, went outside to play with Aki in the winter. After a snowball fight, he ran inside his home to get a ball to play catch with, when suddenly, he and his parents were killed by the Gun Devil in the blink of an eye.

Etymology

 * The surname Hayakawa means "fast, rapid" and "river". His given name Taiyo means the "sun".