Share
The k4sen Con 2026 Wraps Two-Day Run With 8 Events at Yoyogi National Stadium, GANYMEDE Unveils New Gaming Bar
GANYMEDE, Inc. (headquartered in Minato, Tokyo; CEO: Nishihara Daisuke) has announced that “The k4sen Con 2026,” a large-scale event produced by ZETA DIVISION streamer k4sen, was held over two days on August 8 (Sat) and 9 (Sun), 2026 at Yoyogi National Stadium First Gymnasium, closing to great excitement and acclaim.
- The k4sen Con 2026 held over two days at Yoyogi National Stadium First Gymnasium
- A total of 8 events across Day 1 and Day 2, featuring SHAKA, Kato Jun’ichi, Mokou, and more
- Interactive “Kasecoin System” introduced to unite performers and audience
- Cross-genre collaboration including an escape game supervised by Matsumaru Ryogo
- New venue “UKIYO GAME BAR” announced to open late August
All 8 Events Across Two Days — Day 1 & Day 2 Lineup
Day 1 featured four events: “Real GeoGuessr,” “The Men Who Don’t Laugh,” “Summer Vacation The k4sen,” and “Real Buckshot Roulette.” Day 2 brought “Real Butt Battler,” “SKULL,” “Escape Game (supervised by Matsumaru Ryogo),” and “Horse & Relay,” with streamer-inspired events electrifying the venue.
Star-Studded Lineup and the Kasecoin System
The event brought together fan-favorite performers from k4sen’s LTK series alongside popular streamers including SHAKA, Kato Jun’ichi, Oniya, Mokou, Yuyuuta, and Suzuki Noriaki. The newly introduced “Kasecoin System” allowed attendees to earn points and participate in events, drawing attention as a feature that heightened the sense of unity between viewers and the venue.
Cross-Genre Collaboration Including Matsumaru Ryogo’s Escape Game
The “Escape Game” on Day 2 was supervised by puzzle creator Matsumaru Ryogo, achieving a collaboration that transcended the boundaries of a typical streamer event. Building on previous partnerships with game makers such as “Sonic Racing The k4sen,” the involvement of creators from different fields continues to expand the scope of the event.
Future Plans — UKIYO GAME BAR Opening Late August
During the event, ZETA DIVISION announced that “UKIYO GAME BAR” will open at the end of August as a new business venture. Founded in 2018, ZETA DIVISION is expanding beyond esports team management into brick-and-mortar operations. GANYMEDE plans to continue developing entertainment businesses rooted in streamer culture.
Takeaways and Outlook
The k4sen Con 2026 has steadily raised its game as an entertainment production — from Matsumaru Ryogo’s escape game supervision to the introduction of the Kasecoin System. The scale of filling Yoyogi National Stadium for two days symbolizes the growth of the streamer event market. With the opening of UKIYO GAME BAR, a new hub bridging online and offline, there is considerable anticipation for what comes next.
Source: PR TIMES
