Anime and Manga Worlds Celebrate Marine Day 2026
On July 20, 2026, numerous anime, manga, and game franchises posted Marine Day greetings on social media. The Japanese national holiday, which honors the ocean and marks the end of the rainy season, prompted official accounts and creators to share beach-themed illustrations, character birthday messages, and promotional content. Among the posts, the official Kaiju No. 8 account promoted an upcoming original short anime titled "Narumi's Weekday" with a pun on the character's name and the kanji for sea. The MAPPA studio released a new illustration by Rie Nishimura for the soccer series DAYS, which is celebrating its 10th anniversary in 2026. The Sound! Euphonium account reminded followers that the film Sound! Euphonium: The Final Part 2 opens on September 11. Classroom of the Elite noted that July 20 is also the birthday of character Honami Ichinose. The That Time I Got Reincarnated as a Slime account promoted the streaming of its movie Tears of the Azure Sea on U-NEXT. The Chiikawa movie account promoted the July 24 release of Eiga Chiikawa: Ningyo no Shima no Himitsu. Voice actor Yuki Kaji posted a personal greeting, and the band Orange Range shared a summer song. The roundup, compiled by Anime News Network, spanned three articles covering dozens of entries.