Here we go:
Takahiko Arima was a very business centric person, he was very wealthy now from his business and while he couldn't be with his son at most times, he always wanted the best for his son Kōusei Arima.
He had returned in June to find Kōusei not home (he was at a piano lesson with Nagi and Hiroko) which was pretty normal as he heard that he had taken up Piano again which made him feel proud
He went in the living room to find a letter
He opened and read it, it was from Kaori Miyazono and it was addressed to Takahikos son Kōusei
After reading it, a tear slipped from his eye, this girl loved Kōusei and was probably the reason he came back to piano and soon he realised how he could make up for being absent all the time
He had to bring Kaori back to life for his son to be truly happy again.
Kōusei came and shockingly found his father waiting for him, they talked about current events with Kōusei mentioning Kaori and Takahiko doing what most fathers would do which was cheer him up when things are going or have gone wrong.
After a few days of bonding with Kōusei, Takahiko left for work which he left late at night, he then decided to talk to a few people.
First Tsubaki Swabe
He bumped into her just as he was heading out of the house.
"Hi Mr Arima" said Tsubaki
"Hi Tsubaki, just call be Takahiko" said Takahiko
"How are you" said Tsubaki
"I'm really good, but I need to tell you something that you must not tell Kōusei about" said Takahiko
"What is it" said Tsubaki
"Right, I'm going to Towa Cemetery and I'm going to retrieve the body of Kaori Miyazono and I'm going to take it to Tokyo where scientists, doctors and spritialists are going to work hard to bring her back to life, I will return on Christmas Day and that will be his present" said Takahiko
Tsubaki had a bit of a shocked look on her face, but the good intent of Takahiko
"I see, what if it dosen't work" said Tsubaki
"Look Tsubaki, I'm willing to give my own life to make sure my own son is happy, this girl clearly loved him and by what Kōusei tells me, he loved her massively, so I'm going to make sure it doesn't fail, no matter the cost" said Takahiko
"Ok, does Kaoris parents know about this" said Tsubaki
"No, not yet" said Takahiko
"You might need to tell them, don't worry I'll make sure that Kōusei dosen't know" said Tsubaki
"Good, good, I'll better be off then, make sure Kōusei is ok while I'm gone" said Takahiko
"Ok good luck" said Tsubaki
Takahiko drove in his big 4X4 car to Towa Cemetery where it took him a while to find Kaoris grave and he eventually found it, he decided to start digging.
After a small amount of time, Takahikos shovel hit something
A Coffin
Takahiko saw a coffin which he pulled up and then he opened it to find a beautifully preserved body of Kaori Miyazono
"She looks cute, no wonder my son fell for her" whispered Takahiko
Afterwards he shoved the coffin in his large 4X4 car and headed off to Tokyo