Music video for the project Wonderism: Kimi wo Yobu Koe. The project focuses on "re-evaluating one's hometown" and telling stories that come from rural areas. The video takes place in Kobe City, specifically by the Goshikizuka Kofun which is a huge ancient tomb built around the end of the fourth century to the beginning of the fifth century. The animation is accompanied by the titular song Wonderism by HOWL BE QUIET.
(Source: Anime News Network, Crunchyroll, edited)