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Ryuuichirou Isaka

井坂龍一郎

He is the executive Director of Akihiko's publisher, and the childhood friend of Haruhiko (Usami's brother).

Appears in

★ 6.6

Junjo Romantica

TV · 2008
★ 7.0

Sekai Ichi Hatsukoi - The World's Greatest First Love

TV · 2011
★ 7.0

Junjo Romantica 2

TV · 2008
★ 7.3

Sekai Ichi Hatsukoi - The World's Greatest First Love Season 2

TV · 2011
★ 7.1

Junjou Romantica 3

TV · 2015
★ 7.0

Junjou Mistake

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