|Birth Name||Park Jun-hyuk (박준혁)|
|Stage Name||Jun (純)|
|Born||December 20, 1993|
|Occupation||Drummer, singer, firefighter|
|Agency||Melody Ent. (2010-2016)|
|Associated Acts||Uta Shoujo|
|Time in Group||8 Years, 4 Months, 20 Days|
Jun (純) is an Korean-Japanese drummer and vocalist in the Japanese band/group Sekai no Oto. He is also a former member of the disbanded Melody Ent. band The Upperclassmen.
Jun's mother and father were immigrants from South Korea, making him ethnically Korean. His parents have since become naturalised Japanese citizens. Jun is an only child.
Jun graduated high school in 2012. He studied music at university, later graduating with bachelor's degree in the subject during 2016.
Jun (純): Means "genuine" or "pure"
Daigo (大吾): A nickname given to him by his fellow members of Sekai no Oto after they learned he had started training as a firefighter within the Tokyo Fire Department. The name "Daigo" is a reference to the protagonist of the shonen manga "Firefighter! Daigo of Fire Company M.
- Stage Name: Jun (純)
- Birthdate: December 20, 1993
- Birthplace: Tokyo, Japan
- Blood Type: O
- 2xWings Status:
- 2013-08-27: Sekai Oto Member
- 2016-??-??: Moved to 2xWings Entertainment
- Years in Sekai no Oto: 7 Years
- Navy (2016–Present)
- 2xWings Groups:
- Sekai no Oto (2013–Present)
- Jun is currently the oldest entertainer in 2xWings, at 26 years old.
- Jun is also currently the only entertainer who has a full-time career outside of the agency.
- Because of the demands of his job, he's unable to participate in every band activity.
- He is bilingual, able to speak Korean and Japanese fluently.
- He can also speak some English, but it's very poor.