A Couple of Cuckoos Season 2 Anime Releases Ai Mochizuki Song “Rouden” Lyric Video
Fans of the romantic comedy anime A Couple of Cuckoos can now enjoy the newly released lyric video for “Rouden” (“Leakage”), the signature song performed by the show’s new heroine Ai Mochizuki. Voiced by actress Hina Youmiya, Ai Mochizuki made her debut appearance in the anime’s second season, which premiered in July 2025. The official lyric video was shared via KADOKAWA’s official anime YouTube channel.
Ai Mochizuki’s Debut Song “Rouden”
“Rouden” serves as the iconic performance piece for Ai Mochizuki in the series. Within the story, Ai is portrayed as a talented online singer and the childhood friend of protagonist Nagi Umino. Her character brings an emotional depth to the musical element of the series, and the song “Rouden” captures that through its unique rhyming lyrics crafted in Japanese, English, and Chinese. The lyric video showcases Ai’s heartfelt delivery, brought to life through the voice acting talent of Hina Youmiya, a rising star in the anime industry.
In addition to the vocal version, an instrumental version of “Rouden” has also been released, allowing fans to experience the musicality of the track in its pure form. Both videos are now accessible on KADOKAWA’s official platforms.
A Couple of Cuckoos Season 2: New Developments and Streaming
The second season of A Couple of Cuckoos continues the romantic entanglements and comedic situations introduced in the first season. Based on the manga series written and illustrated by Miki Yoshikawa, the anime adaptation first aired in 2022 with a 24-episode season. Season 2 officially began broadcasting on July 8, 2025, bringing back familiar characters while introducing new dynamics through characters like Ai Mochizuki.
The story revolves around Nagi Umino, a top student who was accidentally switched at birth. While on his way to meet his biological parents, he encounters Erika Amano, a spirited girl trying to escape an arranged marriage. She convinces Nagi to pretend to be her boyfriend for a family dinner. This turns out to be more complicated than expected when they realize they’re both heading to the same household. The comedic and romantic complications deepen when their families attempt to push them into marriage, all while Nagi continues to pursue his academic goals and personal romantic interests.
Crunchyroll is currently streaming A Couple of Cuckoos Season 2 for subscribers in key territories, including North America, Central and South America, Europe, Africa, Oceania, the Middle East, the CIS region, and the Indian subcontinent.
Animation Studio, Voice Cast, and Staff
A Couple of Cuckoos is produced by Shin-Ei Animation and SynergySP, two well-known studios with a history of delivering quality animation. Season 2 continues under the direction of Hiroaki Akagi, who also directed the first season. The series composition is handled by Yasuhiro Nakanishi, while Riki Hashimoto serves as the character designer, ensuring consistent visual style and character aesthetics.
The main voice cast returns for Season 2, including:
- Kaito Ishikawa as Nagi Umino
- Akari Kitō as Erika Amano
- Konomi Kohara as Sachi Umino
- Hina Youmiya as Ai Mochizuki
With the addition of new characters and plot developments, Season 2 expands on the relationships and complex family dynamics that define the narrative.
Music and Official Media
The soundtrack continues to be an integral part of the anime’s appeal. The release of “Rouden” has added a new layer of musical storytelling to the series. Notably, idol group 22/7 has also contributed to the season with a special dance music video for the anime’s ending theme, further highlighting the synergy between music and narrative.
The second season maintains the high production quality and engaging character development that fans appreciated in the original season. With the involvement of new artists and expanded character arcs, A Couple of Cuckoos Season 2 continues to build on its strong foundation.
Conclusion
The release of Ai Mochizuki’s signature song “Rouden” through KADOKAWA’s official channels adds an exciting layer to the ongoing success of A Couple of Cuckoos Season 2. With its blend of heartfelt music, romantic comedy, and strong production values, the series remains a standout title for anime viewers in 2025. With ongoing streaming on Crunchyroll and continued support from a talented cast and crew, the season promises a compelling viewing experience for both returning fans and new audiences.
