Sun-Star Stationery Koupen-chan 2026 Desk Calendar Koupen-chan S8521743 seireki13ya Japanese Punk & Yakuza Manga

Japanese Punk & Yakuza Manga written by Makoto Mizuta

Japanese Animal Manga written by Tamako Tamagoyama

Japanese SF & Fantasy Manga written by Atoha

Japanese Romance Manga written by Zero Yamazaki

Sun-Star Stationery Koupen-chan 2026 Desk Calendar Koupen-chan S8521743 seireki13ya Japanese Punk & Yakuza MangaCharacter Calendar published by Sun Star Stationery. The 2026 Character Desk Calendar with Messages brightens office communication. This slim, space saving calendar includes message pages like [On Break], [Out], [Away], and [Remote Work]. Features holidays, events, and 12 monthly pages through December 2026. The [Koupen chan] design spreads positivity every day.