Hoshi is of average height with youthful features for his age. He is commonly seen in a formal attire comprising of a black business suit and leather shoes that he wears to work as uniform. He wears a pair of circular glasses.
|Metropolitan Police Department||Masaya Hoshi · Manami Yumiki · Tanaka|
|Joso Academy||Sayuri · Noguchi · Mizukiyo Minamikawa|
|Tokyo University||Gaku Yoneda · Yuri Temari · Naoi|
|Kakehashi family||Mirai Kakehashi · Saki Hanakago · Mirai's aunt · Mirai's uncle|
|Mukaido family||Nanato Mukaido · Aya Mukaido · Nanaka Mukaido|
|Uryu family||Kanade Uryu · Rea Uryu|