A doctor walked in with a hazmat suit on, after all Kaori did have a contagious disease stemmed from her previous illness that stopped her from performing Kōusei and nearly destroyed her neurone system as well as almost killing her.
The doctor walked up to Kaori first and he looked down at her and said "how are you feeling"
"I feel good doc, when am I coming out" said Kaori
"When your disease goes, so we are not so sure" said the doctor
"You always say that, when I'm actually getting released" said Kaori raising her voice
The doctor decided to ignore her plea and instead turned to Takahiko
"Hows my leg holding up" said the doctor
"It's still pretty broken and you won't be able to walk for a month" said the doctor
"Oh, why aren't you helping the girl over there (pointing at Kaori)" said Takahiko
The doctor leaned over to Takahikos ear and whispered "We aren't sure what to do to her, we can't let her out, we can't keep her here forever and we don't know what will cure her"
"What if I can help her, by giving some of my blood or something, after all I can't get infected" whispered Takahiko
"There's a massive risk though, you or Kaori could die in the transfusion or the wound could be infected" whispered the doctor
"I'm willing to take that risk, she needs the freedom after 2 whole years" whispered Takahiko
"Are you sure, she's legally dead in Japan, she probably won't be able to come back after she's free for an another 2 years, so it's up to you" whispered the Doctor
"I'm willing to do it, even if I have to adopt her" said Takahiko