Sugahara Natsuki, known by the stage name Ruka, is a Japanese singer and rapper based in Bangkok, Thailand. He's the rapper and sub-vocalist of the boy group A:SIDE (เอไซด์) managed by Aplan International (เอแพลน อินเตอร์เนชั่นแนล).
In May 2025, A:SIDE made their debut with their first single "Fish Sauce."
(Source: MyDramaList)
