I Will Forget This Feeling Someday by Yoru Sumino

Two parallel dimensions and brief meetings in the dead of night give rise to a passionate love story from the bestselling author of I Want to Eat Your Pancreas.

Suzuki Kaya lives an everyday, ordinary, boring life. That is, until a dazzling light appears before him at a defunct bus stop, showing him a vision of a girl from another world. From that moment, Kaya’s life changes as they strive to find ways to meet one another from across dimensions, and maybe… even fall in love.
This moving tale is the newest novel by the Eisner-nominated author of I Want to Eat Your Pancreas and I Had That Same Dream Again!