by The TV anime series “The Forbidden Mole” and “Hozuki’s Coolheadedness” are collaborating with Seibuen Amusement Park. The collaborative event, “Halloween Party for the Other World and This World,” will take place from September 12 to October 31, 2025.
Mole” is a “horror x comedy” series currently being serialized in Kodansha’s “Morning” magazine, depicting the mysterious world of this world where “people” and “spirits” intersect mysteriously and humorously. “Hozuki’s Coolheadedness” was also serialized in the same magazine until 2020, depicting King Enma’s first aide, Hozuki, dealing with troubles in Hell.
This collaboration was made possible by the fact that Natsumi Eguchi writes both series. This Halloween event, Seibuen Amusement Park’s first since its 2021 renovation, combines the worlds of “Forbidden Mole,” which depicts this world, and “Hozuki’s Coolheadedness,” which represents the otherworld, for a thrilling experience.
“Forbidden Mole Mystery Game: Mysterious Phenomena at the Halloween Party” involves guests exploring the park to solve mysteries and stop strange phenomena occurring in places they should never approach. Meanwhile, “Hozuki’s Coolheadedness Mystery Game: Enma Agency Temporary Investigator’s Order! ~The Blank Page and His Whereabouts~” involves guests receiving a request from Hozuki to gather clues to fill in a blank page found in the Enma Book.
There will also be plenty of collaborative food and original merchandise inspired by scenes from the series. Sukerokuya, from “The Forbidden Mole,” offers the “Island Feast! Fried Horse Mackerel Set Meal,” reminiscent of Yaeko’s local seafood specialty.
The large, meaty fried horse mackerel is filling enough to fill you up. Cafe Victoria, from “Hozuki’s Coolheadedness,” introduces the spicy “Hell’s Red Pasta,” topped with baby corn inspired by Hozuki’s horns and a bright red color befitting hell. Add Tabasco sauce to taste, and you’ll be transported even further to “Hell.” Tsurukamedo’s “Goldfish Grass Dumplings” come in three flavors: miso, mitarashi, and Sayama tea. They’re the perfect snack to enjoy while walking around. Orders of collaboration food will receive a random novelty coaster based on the purchase amount.
Original merchandise includes acrylic stands, badges, key chains, and more featuring original illustrations from the “Halloween Party of the Other World and This World.” For every 3,000 yen spent, including original merchandise, a photo-style card will be given away.
Festival games include “Forbidden Mole Pistol Darts,” in which players aim at and retrieve ghost lights gathering among the moles enjoying the Halloween party, and “Hozuki’s Coolheadedness Mini-Game Demon Extermination,” in which players feed kibi dango to demons to make them their allies. Exclusive prizes are reportedly available here. At the Fujimi Observation Tower and the rotating trapeze, players can hear exclusive voice recordings of “Forbidden Mole” moles, Akira Makiguri, and Yaeko Kirihara, along with familiar music. Enjoy the experience of riding the attraction together.
Additionally, Seibuen Amusement Park’s “One-Day Leisure Ticket,” which includes admission and unlimited rides on attractions, is now available with exclusive perks for the “Halloween Party in This World and the Other World”: the “Forbidden Mole One-Day Leisure Ticket with Bonus & Rally” and the “Hozuki’s Coolheadedness One-Day Leisure Ticket with Bonus & Rally.” It comes with a ticket-style card (2 types of each, four types in total) and a puzzle-solving game kit. On October 26, a talk event will be held with the all-star cast of voice actors from the TV anime “Dekin no Mogura.”
This autumn, why not enjoy Halloween in both the “other world” and “this world” with these two works? Date: Sunday, October 26, 2025 Time: 1st session: Doors open at 12:50, performance begins at 1:20 p.m. 2nd session: Doors open at 3:40 p.m., performance starts at 4:10 p.m. (each session lasts approximately 45 minutes) Location: Let’s Go! Leoland exceptional stage Cast: Okawa Genki (role of Makiguri Akira), Fujii Yukiyo (role of Kirihara Yaeko), Takeuchi Shunsuke (role of Nekotsuki Fuji Shiro) Price: 3,850 yen Content: Talk event Sales location: Seibuen Amusement Park website Sales period: From 12:00 on Saturday, September 6, 2025 *Will proceed even if it rains, but will be canceled if it is severe weather. *Price does not include admission fee; a separate one-day leisure ticket is required. (C) Eguchi Natsumi, Kodansha / The Mole Production Committee (C) Eguchi Natsumi, Kodansha / “Hoozuki’s Coolheadedness” Season 2 Production Committee. The “Halloween Party” will be held from September 12 to October 31, 2025.
This collaboration was made possible by Natsumi Eguchi’s work. Combining the worlds of “Forbidden Mole,” which depicts this world, and “Hozuki’s Coolheadedness,” which represents the otherworld, this Halloween event will be Seibuen Amusement Park’s first (since its 2021 renovation) to offer a thrilling and exciting experience. “Forbidden Mole Mystery Game: Mysterious Phenomena at the Halloween Party” involves guests exploring the park to solve mysteries and stop strange phenomena occurring in places they should never approach.
Meanwhile, “Hozuki’s Coolheadedness Mystery Game: Enma Agency Temporary Investigator’s Orders! ~The Blank Page and His Whereabouts~” involves guests receiving a request from Hozuki to gather clues to fill in a blank page found in the Enma Book. Scenes from the series will also inspire plenty of collaboration, food, and original goods. Sukerokuya, from “The Forbidden Mole,” offers the “Island Feast! Fried Horse Mackerel Set Meal,” reminiscent of Yaeko’s local seafood specialty.
The large, meaty fried horse mackerel is filling enough to fill you up. Cafe Victoria, from “Hozuki’s Coolheadedness,” will introduce the spicy “Hell’s Red Pasta,” topped with baby corn inspired by Hozuki’s horns and a bright red color befitting hell. Add Tabasco sauce to taste for an even deeper dive into Hell. Tsurukamedo’s “Goldfish Grass Dumplings” come in three flavors: miso, mitarashi, and Sayama tea. They’re the perfect snack to enjoy while walking around. Ordering collaboration food will receive a random novelty coaster depending on the amount spent.
Original goods include acrylic stands, badges, key chains, and more, featuring original illustrations from the “Halloween Party in the Other World and This World.” For every 3,000 yen spent, including original merchandise, you will receive a photo-style card. Festival games include “Forbidden Mole Pistol Darts,” where you aim at and retrieve ghost lights that have gathered around moles enjoying the Halloween party, and “Hozuki’s Coolheadedness Mini-Game Demon Extermination,” where you give kibi dango to demons to make them your allies. There will be prizes that can only be obtained here.
At the Fujimi Tembo Tower and the rotating trapeze, newly recorded voices of “Forbidden Mole” moles, Akira Makiguri, and Yaeko Kirihara, along with familiar songs, will be broadcast, allowing you to enjoy the experience of riding the attraction together. Additionally, the “1-Day Leisure Ticket,” which includes admission to Seibuen Amusement Park and unlimited rides on its attractions, will now come with exclusive perks for the “Halloween Party in This World and the Other World” the “Forbidden Mole 1-Day Leisure Ticket with Perks & Rally,” and the “Hozuki no Reitetsu 1-Day Leisure Ticket with Perks & Rally.” Each ticket comes with a ticket-style card (two types of each, for a total of four) and a puzzle-solving game kit. A talk event featuring the all-star cast of voice actors from the TV anime “Forbidden Mole” will also be held on October 26.
This autumn, why not enjoy Halloween in both the “other world” and “this world” with these two works? Date: Sunday, October 26, 2025 Time: 1st session: Doors open at 12:50, performance begins at 1:20 p.m. 2nd session: Doors open at 3:40 p.m., performance starts at 4:10 p.m. (approximately 45 minutes each) Location: Let’s Go! Leoland exceptional stage Performers: Okawa Genki (role of Makikuri Akira), Fujii Yukiyo (role of Kirihara Yaeko), Takeuchi Shunsuke (role of Nekotsuki Fuji Shiro) Fee: 3,850 yen Content: Talk event Sales location: Seibuen Amusement Park website Sales period: Saturday, September 6, 2025, from 12:00 The event will be held even if it rains, but will be canceled in the event of severe weather. The price does not include admission; a separate one-day leisure ticket is required.
