However, while performing together (Kōsei having been dragged into it by Kaori), Kaori suddenly collapses after a moving performance and is hospitalised.
At first Kaori says that she is anaemic and just needs some routine testing, but this is revealed to be a lie when flashes of her past reveal her collapsing and bleeding many times before.
An anime television series adaptation by A-1 Pictures aired from October 2014 to March 2015 on Fuji TV's Noitamina block.
As a result, he is no longer able to hear the sound of his piano even though his hearing is perfectly fine.Influenced by her emotional and unrestrained playing style, Kōsei eventually finds himself falling in love with her.He, however, does not confess his feelings due to her liking his best friend, Ryota Watari. He hoped that his newly born daughter would be a little like Sissy."Good girls don't. Always Female due to the Double Standard, the Good Bad Girl is less chaste than her fellow female characters. But she was good because wherever she was, there was life, good, tender, overwhelming, fun-loving and strong-scented life.Consequently, she's built up a notorious sexual history around them (which may, however, be exaggerated — many a Good Bad Girl eventually settles for monogamy after they have experienced all that men can offer).She (and her most trusting friends) can't understand why people believe that it's bad for a woman to like sex as much as she does."Johnny studied Sissy as he smoked an after-supper cigar. Ever since her figure developed, boys have been making passes at her — and she's been accepting some.He wondered what criterion people used when they applied the tags 'good' and 'bad' to their fellowmen. In fact, shockingly, she probably even takes the initiative in going after men sometimes.Much to everyone's sadness, Kaori dies due to the surgery, but leaves a letter to Kōsei which is given to him by her parents at her funeral in which she eventually states that she was in love with Kōsei the whole time, and she lied that she had a crush on Watari to get closer to him while not hurting Tsubaki's (who also has a crush on Kōsei) feelings. Kōsei is a former child prodigy in playing piano, dubbed the "Human Metronome" for his near-inhuman mechanical accuracy, a product of his mother's overly strict methods of teaching.His ability to play the piano with unparalleled precision led him to win many competitions across Japan and even be invited to play abroad.