I think that he will be able to, because of the illustration that the author added at the end as a preview to the future.
yup, but the question is, would they actually be able to reunite
I want to believe
My headcanon is that Arata stumbled upon Shun on a gig and heard him sing. Then he comes at that place frequently just to see him just to break the monotony of his highschool life.
awe I like that hc
Its a happy ending but what would happen if Arata could not pass on ╥﹏╥