SideM "Super!! Retrose Party" Coming to Seibuen Yuenchi

5 Units Holding Autumn Roses Take Part

This marks the second edition following last year's "Retrose Party." According to the announcement, the 315 Production idols will appear within the park's Showa-retro setting dressed in vintage-style suits and holding autumn roses. The five participating units are DRAMATIC STARS, W, Café Parade, S.E.M, and F-LAGS.

A key highlight of this collaboration is how the park's retro atmosphere blends with the idols' outfits and the rose motif. Original merchandise and themed food options, along with an in-park rally and mini-games, have also been announced. Specific details on merchandise, menu items, and individual activities will be shared in future announcements.

Stage Lineup Changes by Appearance Date

The "Super!! Retrose 'Special' Party" will take place across three days—October 31, November 1, and November 22—at the Let's Go! Leoland Special Stage. The show runs from 18:00 to 19:00 each day. The scheduled cast lineup includes Takeru Kikuchi, Yoshitaka Yamaya, Kento Ito, and Yoshiki Nakajima on October 31; Shugo Nakamura, Yuko Sanpei, Takehiro Urao, and Shunya Hiruma on November 1; and Sho Karino, Takuya Kodama, and Daiki Kobayashi on November 22. Check the dates to find when your favorite cast members will be appearing.

Attending the stage event requires a first-come, first-served "1-Day Leisure Ticket with Event Admission Ticket." Priced at 10,000 yen (tax included), it includes park admission to Seibuen Yuenchi, unlimited ride access, an event admission ticket, and original exclusive perks. Sales schedules and further details will be announced at a later date, so please check official updates for purchase methods and timings.

Another feature is the "We're on the Job! Stamp Rally," held in partnership with Tokyo Joypolis. Pick up a stamp card at either Seibuen Yuenchi or Tokyo Joypolis, collect the first stamp at your initial stop, and then get the second stamp at the other venue. Bring the completed card with stamps from both locations to the designated redemption counter to receive an A5-size original illustration card. Pickup and redemption spots will be announced in due course.

During the event period, Seibuen Yuenchi will be closed on November 18 and 25. The park's confirmed operating hours are 10:00 to 17:00 on October 30 and 31; hours from November 1 onward will be announced in stages. Meanwhile, the Special Party begins at 18:00 on each designated day. Since the park's general operating hours and stage times are handled separately, make sure to check the latest updates for your visit date. The venue is located at 2964 Yamaguchi, Tokorozawa, Saitama Prefecture.