Oshi no Ko (2023)

Doga Kobo's television anime adaptation of Aka Akasaka and Mengo Yokoyari's manga, serialized in Shueisha's Weekly Young Jump from 2020. A backstreet obstetrician is reincarnated as Aqua, the newborn son of idol Ai Hoshino, alongside another soul reborn as his twin sister Ruby; both retain their adult memories as they grow up inside Japan's entertainment industry, Aqua investigating the circumstances of Ai's murder while Ruby chases her mother's idol dream, crossing paths with rising child actor Kana Arima. The first season premiered April 12, 2023. Seiko's own first collaboration with the franchise, a five-character line that began with Ai Hoshino in December 2024 before Aqua, Ruby, Kana Arima, and Akane Kurokawa followed in September 2025, and SuperGroupies' separate three-character watches, credited on their casebacks and product pages to ©Aka Akasaka x Mengo Yokoyari/Shueisha, "OSHI NO KO" Partners, the anime production committee's own credit rather than the manga-only copyright, are merchandise tied to the anime rather than assets appearing within an episode. (Wikipedia)

Watches

Seiko Oshi no Ko Ai Model: Official product partnership, not an in-work appearance. Seiko released this chronograph for idol Ai Hoshino as one of a five-character line (Ai, Aqua, Ruby, Arima Kana, Kurokawa Akane), sold through PREMICO from December 12, 2024 at ¥59,800 (¥65,780 tax-in), limited to 2,000 numbered pieces per character. Officially licensed collaboration with ©Aka Akasaka x Mengo Yokoyari/Shueisha, "OSHI NO KO" Partners. (Seiko)

Official partnership product · Not shown in the work

Seiko Oshi no Ko Aqua Model: Official product partnership, not an in-work appearance. Seiko released this chronograph for Aqua Hoshino as one of the same five-character line, reaching JumpIchiban's storefront in September 2025 at the same ¥59,800 (¥65,780 tax-in) price, limited to 2,000 numbered pieces. Officially licensed collaboration with ©Aka Akasaka x Mengo Yokoyari/Shueisha, "OSHI NO KO" Partners. (Seiko)

Official partnership product · Not shown in the work

Seiko Oshi no Ko Ruby Model: Official product partnership, not an in-work appearance. Seiko released this chronograph for idol Ruby Hoshino as one of the same five-character line, reaching JumpIchiban's storefront in September 2025 at the same ¥59,800 (¥65,780 tax-in) price, limited to 2,000 numbered pieces. Officially licensed collaboration with ©Aka Akasaka x Mengo Yokoyari/Shueisha, "OSHI NO KO" Partners. (Seiko)

Official partnership product · Not shown in the work

Seiko Oshi no Ko Kana Arima Model: Official product partnership, not an in-work appearance. Seiko released this chronograph for child actor Kana Arima as one of the same five-character line, reaching JumpIchiban's storefront in September 2025 at the same ¥59,800 (¥65,780 tax-in) price, limited to 2,000 numbered pieces. Officially licensed collaboration with ©Aka Akasaka x Mengo Yokoyari/Shueisha, "OSHI NO KO" Partners. (Seiko)

Official partnership product · Not shown in the work

Seiko Oshi no Ko Akane Kurokawa Model: Official product partnership, not an in-work appearance. Seiko released this chronograph for actor Akane Kurokawa as one of the same five-character line, reaching JumpIchiban's storefront in September 2025 at the same ¥59,800 (¥65,780 tax-in) price, limited to 2,000 numbered pieces. Officially licensed collaboration with ©Aka Akasaka x Mengo Yokoyari/Shueisha, "OSHI NO KO" Partners. (Seiko)

Official partnership product · Not shown in the work

SuperGroupies Aqua Model Watch Oshi no Ko: Official product partnership, not an in-work appearance. SuperGroupies released this $180.00 watch styled around Aqua Hoshino, one of a three-character line taken for pre-order from June 21 to July 9, 2023, for delivery in mid-January 2024. Officially licensed collaboration with ©Aka Akasaka x Mengo Yokoyari/Shueisha, "OSHI NO KO" Partners. (SuperGroupies)

Official partnership product · Not shown in the work

SuperGroupies Ruby Model Watch Oshi no Ko: Official product partnership, not an in-work appearance. SuperGroupies released this $180.00 watch styled around Ruby Hoshino, part of the same three-character line taken for pre-order from June 21 to July 9, 2023, for delivery in mid-January 2024. Officially licensed collaboration with ©Aka Akasaka x Mengo Yokoyari/Shueisha, "OSHI NO KO" Partners. (SuperGroupies)

Official partnership product · Not shown in the work

SuperGroupies Kana Arima Model Watch Oshi no Ko: Official product partnership, not an in-work appearance. SuperGroupies released this $180.00 watch styled around Kana Arima, part of the same three-character line taken for pre-order from June 21 to July 9, 2023, for delivery in mid-January 2024. Officially licensed collaboration with ©Aka Akasaka x Mengo Yokoyari/Shueisha, "OSHI NO KO" Partners. (SuperGroupies)

Official partnership product · Not shown in the work