What this is
Hatsune Miku descends on one of Japan's hottest cities — Kumagaya, famously known for recording some of the highest temperatures in the country — for a four-day collaboration blending the virtual idol with the local Maneki-neko (lucky cat) tradition and the city's summer festival culture. The centrepiece is a seven-location stamp rally across Kumagaya, with Piapro character panels at each stop and an original prize for completionists redeemable at AZ Kumagaya's 6th floor hall. The highlight for train enthusiasts and Miku fans alike is the special Chichibu Railway 'SL Hatsune Miku × Kumagaya' steam locomotive, running on July 19 only. Merchandise is available both at a physical pop-up shop during the event and via online pre-order.
Who should go
Hatsune Miku and Vocaloid fans who enjoy combining merch hunting with light city exploration. The stamp rally format makes it a good fit for solo fans or small groups willing to walk between locations around Kumagaya Station.
Good to know
The stamp rally is free to participate in, but the special SL Hatsune Miku train on July 19 requires a separate Chichibu Railway ticket — purchase through the Chichibu Railway official website or at station ticket windows, and expect high demand from fans. The pop-up shop at AZ Kumagaya (a shopping centre directly connected to Kumagaya Station) accepts card payment at most retail counters, though smaller festival stalls around the city may be cash only, so carry yen. Online merchandise pre-orders via the Kumagaya City Tourism Association close July 17 — foreign visitors can attempt to order but may face Japanese-only checkout; a proxy service may be needed. Arrive at AZ Kumagaya early on July 19 for the best selection of limited goods, as popular Miku collaboration items typically sell out on the first day. Kumagaya in mid-July is extremely hot — the city regularly tops Japan's temperature charts, so plan outdoor stamp rally legs for early morning.
This event was sourced and translated from Japanese by What's On Japan. Details may change — verify with the official source before attending.