At San Diego Comic-Con on Thursday, Hasbro revealed a new KPop Demon Hunters roleplaying toy: an electronic version of Rumi’s Sain-Geom, aka the “Four Tiger Sword.”
The collector-grade, 40″ KPop Demon Hunters Rumi Sain-Geom Premium Electric Sword, which retails for $224.99, offers premium sculpt, deco and design. It comes equipped with motion-activated light and sound with more than 50 LED lights and sound effects inspired by the Netflix film. It has multiple play modes and can react to movement and music—including the user’s own singing abilities. The sword also comes with a purple-tinted, HUNTR/X-branded display stand with its own light-up color combinations.
The whole set is powered by a rechargeable USB-C port for both play and display.

Hasbro’s KPop Demon Hunters Rumi Sain-Geom Premium Electric Sword is just the latest item in its line of KPDH-inspired toys and roleplay items, which include Furblets and more. Prior to the company’s appearance at SDCC ’26, it revealed roleplay weapon sets for all three HUNTR/X members, as well as HUNTR/X and Saja Boys light sticks.
As Netflix and its partners celebrate the 1st anniversary of the multi-award-winning film, it seems like audiences of all ages will have toys to commemorate their fandom.
The Rumi Sain-Geom electric sword will be available to ship on approximately July 1, 2027, and pre-orders are available now through Hasbro Pulse and select retailers.
Stay tuned to The Beat and K-Comics Beat for more news from SDCC ’26.
