|Parents||Katsumoto - Father
Ritsu - Mother
|Siblings||Risa - Sister|
|Other Relatives||Tadanori - Brother-in-Law
Rin - Niece
Riri is the head of the fireworks makers. She only appears in the manga.
She looks similar to her niece Rin; Ikuto mistaken her for Rin's little sister at first. Her arms and legs are covered in bandages.