ONEUS Japanese Fan-Con Confirmed… New Song 'Under' to Kick Off Full-Scale Activities

ONEUS is set to reconnect with Japanese fans. According to their agency BIWAVE Entertainment, the 2026 ONEUS FANCON: Welcome to US’s ISLAND in JAPAN (2026 ONEUS FANCON: Welcome to <US's ISLAND> in JAPAN) will be held on June 27 at Tokyo International Forum Hall C and on July 5 at Osaka Nankai Namiki Hall. This local fan-con marks the first since the group’s activities in Japan were signaled last May, and is expected to be an important stage in continuing their momentum. Along with the fan-con, the release of their new Japanese single 'Under' on July 1 has also been confirmed. General admission tickets go on sale June 6, with a range of promotions planned ahead of the event.

ONEUS’s Japanese activities paused after the end of 'Between Earth and Moon Pt.3' last year, but will resume under a new collaboration with a refreshed management. Their exclusive contract with RBW ended in May last year, and in February their partnership with BIWAVE Entertainment was announced. BIWAVE stated that RBW had acquired all IP related to ONEUS, signaling a fresh start for the group and its fans. Along with the agency change, the group—who debuted in 2019 with the mini album LIGHT US—plans to broaden fan engagement throughout 2026.

Besides the fan-con, ONEUS is actively engaging with local fans through various content, including cover videos, behind-the-scenes clips, and their own variety program '원가네 유생의 품격'. In January they kicked off activities with the single '원(原)', and the July release of the new song 'Under' will formalize their Japan activities. This Japanese push, the first major overseas activity since their 2019 debut, is expected to intensify local communication and diverse promotions, signaling renewed global activity.