I've already done a cover of this song from a few years ago but recorded it vertically with my phone. Disgusting. Why? Don't ask.
It's in the anime Clannad. The feels ugh.
Album: Mag Mell / Dango Daikazoku
Artist: Chata
Released: 26 October 2007
Label: Key Sounds Label
Length: 4:32
Lyrics by: Jun Maeda
Music by Jun Maeda
Arrangement by Takumaru
Source: https://clannad.fandom.com/wiki/Great_Dango_Family