Konica Minolta Planetaria Tokyo in Yurakucho will present "Shigeru Mizuki's Yokai Summer Festival 88 Mysterious Constellations" from July 17 to August 31, 2026. The popular summer event "Starry Sky Summer Festival," which has delighted more than 100,000 visitors over the years, is being reimagined this year through a collaboration with the yokai characters of manga artist Shigeru Mizuki.
Online ticket sales open on June 18, 2026 at 3:00 PM.
A New Summer Encounter with Shigeru Mizuki's Yokai
"Starry Sky Summer Festival" has been held annually since 2023, captivating audiences who enjoy the summer festival atmosphere inside the cool dome space. This year, the event takes a bold new direction: the theme is Shigeru Mizuki's yokai.
Shigeru Mizuki's yokai — from GeGeGe no Kitaro and beyond — are familiar figures to many in Japan. Somewhere humorous, somehow endearing, these characters have a way of making the distance between humans and yokai feel remarkably small. This summer, they are unleashed across the entire planetarium dome. The 360-degree starry sky overhead gradually transforms into a world inhabited by yokai, creating an immersive entertainment experience unlike anything before.
All 88 Constellations Become Yokai — A Fantastical Experience Only a Planetarium Can Offer
There are 88 constellations in the night sky, and under normal circumstances it is impossible to see all of them in a single evening. Seeing all of them at once is something only a planetarium makes possible.
This summer, every one of those 88 constellations transforms into a yokai from Shigeru Mizuki's world.
Familiar constellations become "yokai constellations" — a little eerie, a little lovable. And looking around the 360-degree dome, there are more yokai lurking beyond the constellation figures. Look up and one might be looming directly overhead, waiting to give you a surprise.
Try spotting each yokai and taking a photo together. The boundary between reality and fantasy blurs in this special experience available only this summer.
- All 88 constellations transform into 88 yokai constellations!
- An immersive experience of stepping into the yokai world!
- All visuals are photo-friendly — enjoy commemorative photos with Kitaro and friends!
Images are for illustrative purposes. Designs and content are subject to change.
Summer Festival Games in the "Otherworld"
Classic summer festival games also get the yokai treatment.
"Yobiko's Target Practice"
"Azuki Arai's Bean Collecting"
Playing games while surrounded by the presence of yokai feels like attending a summer festival in another realm entirely. Prizes include original goods and viewing discount vouchers based on your score.
All participants receive a Kitaro sticker as a participation gift.
Images are for illustrative purposes. Designs and content are subject to change.
Entry Gift: "Yokai Constellation Stickers" Featuring the 12 Zodiac Signs as Yokai
Every visitor to the event receives original stickers featuring yokai that have "transformed into" the 12 zodiac constellations.
The familiar zodiac signs look just a little different from what you expect. These are limited-edition designs exclusive to this event.
- Stickers are distributed randomly and specific designs cannot be requested.
- The gift is available only to ticket holders. Complimentary admission guests will not receive stickers.
- Images are for illustrative purposes. Designs and content are subject to change.
Shigeru Mizuki's Yokai Meets the Planetarium — An "Uncanny World"
Shigeru Mizuki spent a lifetime depicting yokai from Japan and around the world, and his universe continues to captivate audiences today. This event brings together Shigeru Mizuki's world of yokai and the unique space of the planetarium — an unprecedented combination.
From "a place to see the stars" to "an uncanny world" — a new form of summer entertainment from Konica Minolta Planetaria Tokyo.
About Shigeru Mizuki
Born March 8, 1922. Grew up in Sakaiminato City, Tottori Prefecture. During the Pacific War, he was sent to Rabaul, a fierce battleground, where a bombing raid cost him his left arm. After returning to Japan, he began as a kamishibai (paper theater) artist before transitioning to manga. His major works include GeGeGe no Kitaro, Kappa no Sanpei, Akuma-kun, and 日本妖怪大全. He passed away on November 30, 2015.
Event Details
Dates: July 17 (Fri) to August 31 (Mon), 2026
Hours: 11:00 AM to 7:00 PM
Session Schedule (entry time slots):
- Session 1: 11:00 AM to 12:30 PM (check-in: 11:00 AM to 11:30 AM)
- Session 2: 12:30 PM to 2:00 PM (check-in: 12:30 PM to 1:00 PM)
- Session 3: 2:00 PM to 3:30 PM (check-in: 2:00 PM to 2:30 PM)
- Session 4: 3:30 PM to 5:00 PM (check-in: 3:30 PM to 4:00 PM)
- Session 5: 5:00 PM to 7:00 PM (check-in: 5:00 PM to 5:30 PM)
Please check the official website, as session times may change on days when other events are held.
Admission:
- Adults (middle school age and older): ¥1,500 (tax included)
- Children (ages 4 and older): ¥1,000 (tax included)
- Children (ages 3 and younger): Free
- Children in elementary school and younger must be accompanied by an adult (18 years or older).
- Visitors purchasing tickets at the door on the day of the event will be charged a ticket issuance fee of ¥200 (tax included) per ticket.
Venue: Konica Minolta Planetaria Tokyo (Yurakucho) DOME1
(9F Yurakucho Marion, 2-5-1 Yurakucho, Chiyoda-ku, Tokyo)
Official website: https://planetarium.konicaminolta.jp/event/yokai2026/?hall=planetariatokyo&rl=260617_ptok_yokai2026
Ticket Sales
Tickets are available online and at the venue box office.
Online Sales
Sales period: June 18 (Thu), 2026, 3:00 PM until 15 minutes before the check-in start time for each session.
Online tickets are sold exclusively through the official event website. Sales end when capacity is reached.
Box Office (Same-Day Tickets Only)
- Weekdays: from 10:30 AM
- Weekends and public holidays: from 10:00 AM
- Weekdays during the Obon period: from 10:00 AM
A ticket issuance fee of ¥200 (tax included) per ticket applies for box office purchases. Same-day tickets are not available for sessions that have sold out online. The Obon period runs from August 10 (Mon) to August 14 (Fri).
About Konica Minolta Planetaria Tokyo (Yurakucho)
Name: Konica Minolta Planetaria Tokyo
Location: 9F Yurakucho Marion, 2-5-1 Yurakucho, Chiyoda-ku, Tokyo
Regular Holidays: None (closed during program changeover periods)
Business Hours: Weekdays 10:30 AM to 9:15 PM / Weekends and Holidays 10:00 AM to 9:45 PM
