S.O.U.L (an acronym for Sound of Ultra Light) is a four-member project group created for YouTube Original's first Korean web drama Top Management, which premiered on October 31, 2018. They released their first single "S.O.U.L Digital Single" on October 2, 2018.
|Real name||Character name||Position(s)|
|Jung Yuan (정유안)||Teo (테오)||Leader, Vocalist|
|Cha Eun Woo (차은우)||Yeon-woo (연우)||Center, Vocalist, Dancer|
|Bang Jae Min (방재민)||I-rip||Rapper|
|Ahn Hyo Seop (안효섭)||Soo-yong (수용)||Vocalist|
- S.O.U.L Mini Album (2018)
- "S.O.U.L Digital Single" (2018)
- Cha Eun Woo is a member of ASTRO.
- Bang Jae Min was a contestant of the second season of High School Rapper under the name a.mond
- Ahn Hyo Seop is a member of One O One.