Collaboration with Oshinoko: The Lake Ashinoko Bond
A very special collaboration event has kicked off between the hit TV anime Oshinoko—which is based on the amazing original work by Aka Akasaka and Mengo Yokoyari—and the scenic Lake Ashinoko in Kanagawa Prefecture. This exciting event is being held all around the Lake Ashinoko area and is set to continue until May 31st, giving fans plenty of time to visit and experience the magic for themselves.

Key visual of "[Oshinoko] x Ashi Lake" collaboration event
From April Fool’s Joke to Real Life Reality
Initially, the official [Oshi no Ko] anime team released an extra-edition-style image as an April Fool's Day project. It showed the fan-favourite character Kana Arima becoming the captain of the famous Hakone Pirate Ship on Lake Ashi. While everyone thought it was just a funny prank, this new collaboration is actually the real-life embodiment of that fantasy. It is quite interesting to see how a simple joke has turned into such a large-scale event for the community.
The event is currently taking place across three main ports:
- Togendai Port
- Hakone-machi Port
- Moto-Hakone Port

Special Goods and Onboard Attractions
During the cruise, special edition articles created for the April Fool's project are being distributed on board to the passengers. They are also introducing a unique boarding ticket that comes along with an acrylic key chain. This keychain features a newly drawn illustration of Kana Arima wearing a very cute costume that is reminiscent of a pirate ship captain. Please keep in mind that these collaboration boarding tickets are only being sold through EMot Online Tickets.
At Togendai Port, there is a special panel exhibition that looks back on all of Kana Arima's activities and struggles throughout the series. It is a great way to appreciate her character arc. If you are looking for souvenirs, original goods with these new illustrations are being sold at several locations:
- Ashinoko Chaya
- Chaya Honjin Kayanoya Hakone Hyakucha
- Togendai Station kiosks
For those planning to visit, you should definitely check the Hakone Navi website for the ship's flight schedule and store hours. Understanding the industry depth in Oshi no Ko helps you appreciate these real-world events even more, especially when considering the dark side of idols that the story portrays so effectively.
Related articles

[Oshi no Ko] April Fool's Day Kana Arima becomes the captain of a pirate ship this year and goes wild on Lake Ashi
Anime Information:
- Release Date: April 1, 2026
- Category: Comic / Manga

"\[Oshi no Ko\]" 3rd season
2026 winter cool
Cast: Takeo Otsuka, Yurie Ikoma, Megumi Han, Mainaka Iwami, Rumi Okubo, Rie Takahashi