The highly anticipated second season of the supernatural mystery anime, Toilet-Bound Hanako-kun (Jibaku Shōnen Hanako-kun), has officially announced that veteran voice actress Ryōka Yuzuki will be joining its distinguished cast as the character Sumire. This revelation adds another layer of excitement for fans eagerly awaiting the continuation of the beloved series, which has captivated audiences with its unique blend of comedy, supernatural intrigue, and emotional depth.
A Highly Anticipated Return to Kamome Academy
Toilet-Bound Hanako-kun, based on the manga by the enigmatic duo AidaIro, first premiered in January 2020, quickly garnering a dedicated fanbase for its distinctive art style, compelling narrative, and memorable characters. The story unfolds within the rumors and mysteries of Kamome Academy, a school where supernatural occurrences are commonplace. At its heart is Nene Yashiro, a first-year high school student seeking a boyfriend, who inadvertently summons the seventh and most famous of the school’s Seven Wonders: Hanako-san of the Toilet. To Nene’s surprise, Hanako-san is not the ghostly girl of urban legend but a mischievous yet powerful boy who becomes her supernatural assistant after a strange turn of events inextricably links their destinies.
The anime’s first season beautifully adapted the initial arcs of the manga, introducing viewers to the vibrant, often eerie, world of apparitions and human-supernatural interactions. The announcement of a second season, officially deemed a “continuation” or “sequel” to the second season, has been met with significant enthusiasm, promising to delve deeper into the lore and expand upon the intricate relationships between the characters. The second season itself premiered in January 2025, with this new casting news pertaining to its ongoing second part, which began airing on July 6, 2025. The series continues to be directed by Yohei Fukui at Studio Lerche, with Yasuhiro Nakanishi handling series composition and Mayuka Ito as the character designer—all returning from the first season’s core staff.
Ryōka Yuzuki: The Voice Behind Sumire
The addition of Ryōka Yuzuki to the cast is a significant development, given her extensive and celebrated career in the voice acting industry. Born on January 10, 1974, Yuzuki has an impressive resume, lending her voice to a wide array of memorable characters across numerous anime, video games, and even live-action roles.
Among her most iconic roles, fans will recognize her as the stern yet powerful Satsuki Kiryūin in Kill la Kill, the cunning ninja Ino Yamanaka in the Naruto and Boruto: Naruto Next Generations franchises, and the wise Shizuka Hiratsuka in My Youth Romantic Comedy Is Wrong, As I Expected. Her versatility spans various genres, from action-packed shonen to nuanced slice-of-life narratives, showcasing her ability to bring complex personalities to life. More recently, she has contributed to titles such as Mushoku Tensei as Hilda Boreas Greyrat and Food Wars!: Shokugeki no Soma as Courage.
Yuzuki’s casting as Sumire suggests that the character will play a pivotal role in the upcoming narrative, requiring an actress with her depth of experience to convey the necessary emotional range and impact. Her reputation for portraying strong, distinctive female characters bodes well for Sumire’s presence in the Toilet-Bound Hanako-kun universe, hinting at a character who will undoubtedly leave a lasting impression.
Unveiling Sumire: A Key Character
For those familiar with the Toilet-Bound Hanako-kun manga, the character of Sumire holds considerable significance. While details for her anime portrayal are still emerging, in the source material, Sumire is a second-year student at Kamome Academy and a member of the school’s theatre club. Initially introduced with an air of beauty and grace, she becomes entangled in the supernatural events surrounding the school’s mysteries.
Sumire’s involvement is far from superficial; her story delves into themes of loneliness and inadequacy, stemming from past traumatic experiences that have left her feeling disconnected from others. Her journey often involves confronting these fears and insecurities, making her a compelling figure within the supernatural drama. Given the anime’s propensity for exploring the deeper, often darker, backstories of its supernatural entities and human characters alike, Sumire’s arc is expected to be rich with emotional resonance. Her character provides an opportunity to explore new facets of Kamome Academy’s hidden world and its profound impact on those within it.
In the manga, the plot often sees Nene Yashiro and Kou Minamoto navigating the complexities of the Seven Wonders and their respective “Boundaries”—worlds that exist between the living and the dead, often tied to a Wonder’s cherished possession known as a “Yorishiro.” Sumire’s integration into this intricate web of supernatural entities and their human counterparts promises to unravel new mysteries and deepen existing plot lines, potentially impacting the core trio of Hanako, Nene, and Kou.
Production and Expectations for the Continuing Season
The production of Toilet-Bound Hanako-kun Season 2 continues under the reputable Studio Lerche. Known for its distinctive animation style and adaptations of popular manga and light novels, Lerche has been responsible for critically acclaimed series such as Assassination Classroom, Danganronpa: The Animation, and Classroom of the Elite. Their consistent quality in adapting diverse source materials instills confidence in the continued visual fidelity and narrative execution of Toilet-Bound Hanako-kun.
The second season, and specifically its newly announced second part, premiered in Japan on TBS and its affiliates on July 6, 2025. Crunchyroll is streaming the new season, making it accessible to a global audience. The opening theme song for this part is “Kagome Kagome” by Masayoshi Ōishi, and the ending theme is “mo∞ent” by Akari Kitō.
Fans can anticipate a continuation of the anime’s signature aesthetic, characterized by thick outlines, vibrant colors, and a blend of whimsical and eerie imagery that perfectly complements its supernatural themes. The narrative is expected to further explore the balance between the spirit world and the human world, the consequences of wishes, and the hidden truths behind Kamome Academy’s mysteries. The introduction of characters like Sumire also hints at deeper dives into the lore of the Seven Wonders and the tragic pasts that often define them.
The Expanding World of Hanako-kun
Beyond the main series, the Toilet-Bound Hanako-kun franchise has already seen expansion. The manga, written and illustrated by AidaIro, has been serialized in Square Enix’s Monthly GFantasy since 2014 and has been collected into 24 tankōbon volumes as of June 2025, licensed in North America by Yen Press.
A short television anime spin-off titled After-School Hanako-kun (Hōkago Shōnen Hanako-kun) debuted in October 2023, offering a more lighthearted glimpse into the characters’ daily lives outside of their supernatural duties. This four-episode spin-off, also produced by Lerche, was well-received and even saw a sequel air from October 7 to 28, 2024. The existence of these supplementary materials underscores the franchise’s growing popularity and the rich world that continues to be built around its central trio of Hanako, Nene, and Kou. The enduring appeal lies in its unique premise, the compelling dynamics between its characters, and its ability to seamlessly weave together moments of heartfelt emotion, genuine scares, and delightful comedy.
The casting of Ryōka Yuzuki as Sumire serves as a significant milestone for Toilet-Bound Hanako-kun Season 2, signaling a commitment to bringing key characters to life with seasoned talent. As the series continues its run in July 2025, fans worldwide eagerly await the revelations and dramatic turns that Sumire’s introduction is sure to bring to the mystical corridors of Kamome Academy.
