The Keyaki Tree

(from MangaUpdates):

Based on novelist Ryuichiro Utsumi's works.
Published as the Hitobito Series (人びとシリーズ):

• The Keyaki Tree (欅の木)
• The White Rocking Horse (白い木馬)
• The Reunion (再会)
• My Brother’s Life (兄の暮らし)
• The Umbrella (雨傘)
• At the Art Gallery (絵画館付近)
• Through the Forest (林を抜けて)
• His Hometown (彼の故郷)