- Name: Unknown
- Homepage: http://klamnop.info/
- Twitter: https://twitter.com/YuAsahina
- Soundcloud: https://soundcloud.com/yuasahina
- Facebook: https://www.facebook.com/asahina.yu
Yu_Asahina, also known as orangentle, is a Japanese music producer who is known for his Be-Music Source Files (BMS). He has made appearances in Rayark Games' rhythm series Cytus and worked as a composer for PSP games developed by the Japanese company QuinRose.
He owns the KLAMNOP NEXT music label.
- ZOGRAPHOS (with Yamajet)
- Orange Vox+
- ℱsinfonia (with 溝口ゆうま, かなたん, and 大瀬良あい)