โฟกัสแต่ไม่เครียด

https://melodiez.com/ko/track/%e0%b8%81%e0%b8%b2%e0%b8%a3%e0%b8%9c%e0%b9%88%e0%b8%ad%e0%b8%99%e0%b8%84%e0%b8%a5%e0%b8%b2%e0%b8%a2%e0%b8%81%e0%b8%b1%e0%b8%9a%e0%b8%81%e0%b8%b2%e0%b8%a3%e0%b8%a1%e0%b8%b5%e0%b8%aa%e0%b8%a1%e0%b8%b2/