AND THEN IT GOES HAYWIRE. So okay, she's miscarried and self harmed once and somewhere along the line he works out he's got cancer? Perhaps it could excuse the going back to drugs, but it certainly does not excuse the coercion of Mika to perform sexual acts and burn herself with a cigarette under the ruse of going back together with her and then deciding not to. And bearing in mind he knows his girlfriend has just gone through all this suffering and has previously self harmed so clearly isn't in a strong state - I do not see how it could be 'love' or a need to 'protect her' that drove him to severe the relationship but leaving lingering threads and run off with one of her close friends (well, okay so the friend was kind of there to steal her boyfriend) and just leave her with no explanation. I don't know about you but I think breaking the relationship off in amicable terms would have been fairer. And then the whole being with Yuu and not forgetting about this horrible ex of hers. So okay the manga left it at hinting Hiro is dying but to be honest it seemed Hiro was pretty much a backup character from early on in the story and it seems preposterous that Mika would then break up with Yuu to stick to Hiro after all this pain as I believe the drama or movie portrays it (reading forums). Sure if it was just on amicable terms it's understandable but who would want to get back with that kind of nightmare?

Would have been an absolute perfect love story if Hiro would have recoverd from cancer ( Not everyone dies of cancer their are tens of thousands who beat it live with it ans survive for years to come) After he recovered he returned to woe the love of his life Mika and they had a little girl together. Or even if he went into remission, they got back together had a kid then it sificed again and he died. Atleast i wouldn't feel so much regret and loss. it just missing something.