Mejibray Tsuzuku pastel portrait

Pastel portrait of Tsuzuku from Mejibray. This is my first time using pastels, but I think it turned out pretty well. Also, the process was surprisingly quick, I finished it in like 4-5 hours. I do not own the songs used in this video, all credits go to their owners, and Mejibray.

[@kawaiirabbit3552]

What's the name of this first song?