|Anime debut||Round 1|
Jīya (じいや, "Gramp"), real name unknown, is the butler of the Ōno resident, and the driver serving Ōno Akira.
Jīya is a kind old man, serving as the Ōnos personal butler. He shows to be working with the family for many years. He's a very caring man, even going out of his way to break rules to help out Ōno.
Jīya shows very deep feelings for Akira, being her personal driver for many years. He goes out of his way to bring Ono to arcades around the town, even going as far as to defend her against her strict tutor.
|Manga (Hi Score Girl - Hi Score Girl DASH) - Anime (Season 1 - Season 2) - Timeline - Translations|
|Yaguchi Haruo - Ōno Akira - Hidaka Koharu|
|Ma-kun - Nikotamagawa Felicia - Raging Girl|
|Doi Genta - Miyao Kōtarō - Onizuka Chihiro|
|Gōda Moemi - Jīya - Numata - Ōno Makoto - Shōgakkō-sensei - Tōno Reiko - Yaguchi Namie|
|Video game characters|
|Dhalsim - Gōki - Guile - Guy - Honda - Nash - Phobos - Vega - Zangieff|
|Capcom - Koei Tecmo - Konami - Ōno Zaibatsu - Square Enix - SNK - Taito|
|Airport - Candy Store - Flower Garden - Gashadokuro Game Center - Hidaka Mart - Jōran Kōkō - Marumiya Game Center - Minami Chū - Minami Shō - Mizonokuchi - Ōno Mansion - Totsuka Shop - Yaguchi House|
|Biwa - Kawasaki - Kyōto - Los Angeles - Ōsaka|
|Arcade - Famicom - Game Boy - Super Famicom - PC Engine - PC Engine GT - PlayStation - Sega Saturn - Game Gear - Virtual Boy - Neo Geo CD|
|Final Fantasy - Final Fight - Kung-Fu - Samurai Spirits - Street Fighter - Tekken - Vampire Savior - Virtua Fighter - Yie Ar Kung-Fu - Karateka|
|"New Stranger" (OP) - "Hōkago Distraction" (ED)|
|Oshikiri Rensuke (mangaka) - Yamakawa Yoshiki (anime director) - Urahata Tatsuhiko (anime writer) - Kuwabata Michiru (anime character designer) - Shimomura Yōko (composer)|