Natsu ga Hajimaru.

A CalorieMate web movie directed by Takumi Shiga featuring the song "Surges" by Orangestar, with vocals by Kase and Loin.
The video carries an eclectic animation style, as the story follows high school students from various clubs pouring their effort into sports in the second year of the coronavirus pandemic.

(Source: Anime News Network, edited)

Note: Initially published on the Otsuka Pharmaceutical Official YouTube channel in July 2021, it was later reuploaded on Orangestar's YouTube channel under the song title "Surges", republished on August 12, 2021.