That pic from this manga.
http://www.mangago.me/read-manga/kodomo_no_iibun/
It's long Long series revolves around bros of Obinata family.
1 Mainichi Seiten - Big bro Taiga x Former Classmate Shuu
2 Kodomo wa Tomaranai - Youngest Bro Mayumi x Yuuta, Shuu's adopted son
3 Children's Time - Mayumi x Yuuta continues
4 Kodomo no Iibun - Yuuta fights with Shuu then runs away from home.
5 Aki-chan no Iibun - Extra
6 Isoganaide - 2nd Son Akinobu story
7 Hanaya no Nikai de - 2nd Son Akinobu x Ryuu
Does anyone know which manga is this?? i swear i have read it before ( ̄へ ̄)
http://www.mangago.me/read-manga/furachi_na_bokura/an/furachi-na-bokura-chapter-1.html