It's a very rare lung disease.I'm sorry, but you should prepare yourselves for the worst possible case.CrashAt first, she was healthy, but as the days passed, she grew weaker.Fuyuka!!Fuyuka, she'll be fine, right?There have only been 30 cases of this ever in Japan.Doctor... My daughter...Eventually, she wasn't able to write the letters as she wanted.Fuyuka was infected by an incurable disease which only affects one out of every 2 million people.