this one is more complex story
best firends from high school? and only 1 (op) is in love with him but know that he doesnt have a chance so he never confessed they stay friends for a long time
one night friend comes over to talk about something but was "kicked out" and get hit by a bike and goes into coma, the driver was a guy that was in love with op sience high school but was ignored by op so no confession also his life is a mess but in kinda stalking way he manage to become some kind sex buddy
so after accident the sex buddy wakes up and pretend to be the friend and story gest complceted but after friends wakes up the lie is reviled and the op realised that the time spent with the one pretending to be friend wasnt wasted and he basiclly turne love for frind for him
so after they part ways op is despreted tofind him and they tells all the truth to each other and starst daiting and seriouly taking that op wants to spent his life with pretender
Kakkou no Yume