http://www.mangago.zone/read-manga/life_senjou_no_bokura/uu/life_senjou_no_bokura-chapter-1
Is it this one perhaps~?
Prepare your heart and some tissues
Yes! Thank you so much (づ￣ ³￣)づ
Your welcome! Enjoy reading~( ˘ ³˘)
The first time I read it I thought it was gonna be all fluff and love.. i cried buckets ╥﹏╥
The two characters meet while they were walking on the line on the side of the road. They date for a while and separated, then they meet again after several years later in a place where they can see the northern lights.