What this is
Summer Pockets POP UP STORE 2026 is a limited-run merchandise event celebrating the beloved visual novel Summer Pockets, developed by Key (the studio behind Clannad and Little Busters). The pop-up runs from July 25 to August 2, 2026, at Shinjuku Marui Annex's 6th-floor event space, Calendarium 5. The highlight of this event is a set of newly drawn illustrations featuring five characters — including fan favourites Shiroha and Ao — themed around 'Rainy Day,' giving collectors fresh artwork not seen in the original game. Exclusive merchandise produced using these new illustrations, such as acrylic stands, swaying acrylic keychains, and umbrella markers, will be available for purchase on-site.
Who should go
This event is ideal for fans of Key visual novels, Summer Pockets in particular, as well as collectors of anime merchandise and acrylic goods. The intimate pop-up format means a focused, curated selection of exclusive items rather than a large convention floor, making it appealing to dedicated fans who want limited-edition pieces. The Shinjuku Marui Annex location makes it easy to combine with a broader day of shopping and sightseeing in one of Tokyo's most accessible neighbourhoods. Arrive early on weekends, as crowd restrictions or numbered ticket queues may be introduced depending on demand.
Good to know
Entry to the event space on the 6th floor of Shinjuku Marui Annex is free — simply take the elevator or escalator directly to Calendarium 5. Depending on crowd conditions, the venue may implement numbered tickets or timed admission, so arriving at opening time is the safest strategy, especially on weekends. Shinjuku Marui Annex is a standard department store environment that accepts major credit cards including Visa and Mastercard, but individual pop-up merchandise counters sometimes operate cash-only registers, so carry some yen to be safe. The event space is compact, so expect a cosy, busy atmosphere on weekends; weekday visits will be noticeably quieter and more relaxed for browsing.
This event was sourced and translated from Japanese by What's On Japan. Details may change — verify with the official source before attending.