Birthday:
Mizuguchi Yuto
Mizuguchi Yuto, better known by his stage name U, is the vocalist and dancer of the boy group ONF. He was a JYP Entertainment trainee. He participated in MIXNINE and came in 23rd place, hence eliminated.
Birthday: March 16, 1999
![ONF [FOCUS ON AND OFF]](https://image.tmdb.org/t/p/w780/Au7UBGXv8opgUV1V7lUzl4Bu2i2.jpg)
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![온앤오프(ONF) CONCERT [SPOTLIGHT] IN SEOUL NIGHT 1](https://image.tmdb.org/t/p/w780/6DhiTgCYAg09SDRLGCktfByp6xD.jpg)
![ONF 2021 LIVE CONTACT :: CODE #1. [REVERSE]](https://image.tmdb.org/t/p/w780/4wjPi5x2igYJI9jrbE5QcJhSW8X.jpg)
![온앤오프(ONF) CONCERT [SPOTLIGHT:THE HIDDEN SHADOW] NIGHT 2](https://image.tmdb.org/t/p/w780/whume1STRxwi0EVBYU8ZMk669nG.jpg)
![2025 ONF CONCERT [THE MAP:STRANGER’S PATH]](https://image.tmdb.org/t/p/w780/pvF5lXWpkD3HuDDJSXeXtKXlZD1.jpg)
![2026 ONF CONCERT [THE MAP: BEYOND THE HORIZON]](https://image.tmdb.org/t/p/w780/vQmZPhEa8KrUCwrqRqMpl9pube9.jpg)