Kessa mo Yuraretemasu

This is your typical story of a boy who's secretly in love with a girl, they both share a 20-minute ride on the commuter train on their way to different schools, will the boy be able to approach the girl and confess his love? What he doesn't know: 3 other passengers secretly support the boy's secret love for the girl!

https://www.cmoa.jp/title/301047/