I read it a few times in 2019 and 2020 but my phone bricked and took my bookmarks with it, i really want to read it again, the following is a summary of the plot.
Guy gets into a bike accident and wakes up in a hospital with a letter that was from a previous love of his
The manga follows him through his life as he tries to remember who could've been that left the letter, in grade school he rejected a girl that wound up becoming a baker, a british girl in middle school, a guy in cram school, a random chick in a cooking class i think and the most important one; a older woman with short hair and a korean nickname she got from a drama series by her friends, soo-hyon or something phonetically similar, she left him cause she thought her age was a problem as he had bought a ring to propose to her. I'd appreiciate if anyone could help, this manga was very important to me.
Picrel is a drawing i made, unrelated to it all