TrySail Surprise in Koupen-chan Anime: Famous Voice Actors Guest Star in the Cast
Koupen-chan, one of Japan's most beloved mascot characters, hosted giants of the anime world in the 54th episode of its television anime. In the new episode aired on April 12, popular voice actors and members of the TrySail music group, Sora Amamiya, Shiina Natsukawa, and Momo Asakura, appeared as guest characters. This trio added their own energy to the series' peaceful atmosphere, providing viewers with a delightful morning surprise.
Started by illustrator Rurutea on Twitter (now known as X) in 2017, Koupen-chan quickly turned into a global phenomenon. This little emperor penguin, which motivates people with simple but sincere compliments like "You're great for waking up early" or "Thanks for going to work," is known for a pun in Japanese that translates to "affirmation penguin." The short-form anime adaptation of the series, which began in 2025, is produced by studio Lesprit and directed by Kyo Yatate.
The artists who guest-starred in the episode are among the most well-known names in the anime industry. Sora Amamiya (Aqua - Konosuba), Shiina Natsukawa (Tsurumaki Kokoro - BanG Dream!), and Momo Asakura (Iroha Tamaki - Magia Record) have a wide fan base both for their individual careers and as the TrySail group. The fact that these three names came together in the same episode proves once again how appealing Koupen-chan is not just for children, but for anime lovers of all ages.
The Koupen-chan series acts as a "healing" (iyashikei) sanctuary for those who want to take a break in today's busy and stressful world. These famous guests, accompanying the soft tone of Ayaka Saito who voices the main character, seem set to further increase the series' popularity. Fans are already eagerly waiting to see which other popular voices will guest star in this cute penguin's world in future episodes.
