Children's Day is an annual national holiday in Japan that coincides with the final day of Golden Week, celebrating the growth and happiness of children on May 5, 2024. As part of the celebration, Multicolored carp-shaped flags are hung outside houses and apartments, with red bean rice cakes wrapped in oak leaves served as a treat for the occasion.
OSHI NO KO celebrates Children's Day by introducing the main characters, Aqua and Ruby, in their school festival costumes while on a picnic outside. Additionally, a 30-second video featuring Yumi Uchiyama and Yurie Igoma voicing their characters was released.
© A x Y/S, OP
Sword Art Online Alternative: Gun Gale Online also joined the celebration by releasing a playful illustration of Llenn, Fukaziroh and M.
© 2023 KEIICHI SIGSAWA/KADOKAWA/GGO2 Project
Those two anime weren't the only shows celebrating Children's Day, as the official twitter account for the 2005-2006 Black Cat television anime series posted a still from the 14th episode, featuring many children gather around the main character.
🎏\ HAPPY CHILDREN'S DAY!/🎂
5月5日はこどもの日!
画像のトレインが登場するのは第14話 !! #BlackCat #子供の日 pic.twitter.com/qHWCOSzIoF— TVアニメ 「BLACK CAT」公式 (@Anime_BlackCat) May 5, 2024
The television anime series My Happy Marriage also released images of Miyo and Kiyoka as children on the occasion of the national holiday.
Besides Japan, Children's Day is also celebrated in many places around the world throughout the year, each with its own traditions and celebrations. Among the countries that celebrate it in some form include China, Korea, Singapore, Thailand, Germany, Italy, Ireland, Mexico and many others.
Source: OSHI NO KO Official Japanese Twitter, STAR: GGO's official Twitter, Black Cat's official Twitter