Anger (KH Oc x Vanitas )

Before the war

During the reunion of Wayfinder trios, Kairi felt pain in her heart and collapsed in front of everyone. They took her to Yen Sid to find out why she collapsed.

Yen Sid, "The reason why she collapsed is that her connection to Sara is severed. She is currently in coma only for briefly. I don't know why she is in coma."

Terra, "So...Sara is...."

Yen Sid nodded. 

Terra looked down to the ground and said, "She saved me but what caused her to die?"

Yen Sid said, "Maybe we will learn what happened to her. "

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Kairi's POV
"Huh, What is this place?" After finding myself in a place that is unfamiliar to me. She was in the darkness until she looked down to the ground and saw Sara on the ground. A few faces next to Sara are Sebastian, and Vanitas. Sara's eyes are closed. Kairi notices that faces are smiling and it was very strange.

"So this place is Sara's heart. These faces are very dear to Sara. But why am I here?"

She sat down and looked at Sara's face lost in thoughts until something unexpected happened.
She found herself in different place, room full of white. Namine appears in front of Kairi.

"Namine, is that you?"

Namine responded, "Yes, Kairi it is me."

"What had happened?"

Namine rely, "Your connection to Sara have brought you here first her heart and then this place. You may not know this, Sara had passed away and she wanted to share something with you after her death. She used her powers to show you something...the story of Sara's life. She wanted you to understand."

The memories of Sara appears...
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It is the younger version of Sara, she appears to be wearing red dress with white belt. Her hair is very long. She is smiling and running across the hallway of a castle. She jumps on a man who have black cape and hood on; wearing black clothing. Her father was nobody. He have black hair that covered his right eye. Her father took off his cape. Her mother appeared out of nowhere. Her mother is very beautiful with extreme long white-blond hair, and she is wearing orange dress including a headband crown. 

Her mother frowned after seeing Sara's father and said, "Why are you here?" 

Sara was trying to put on her father's cape and her father said, "Maybe I wanted to see my only kid." 

Her parents were about to get into argument but Sara accidentally fell. Sara's keyblade appears out of nowhere after she fell. Her parents were in shocked after seeing that their daughter awakened her powers as keyblade wielder. After few hours, Sara's father left and never came back to see Sara again. Sara spent rest of her life trapped in the castle preparing for the day she become a queen. But she never forgotten her father. 

Until one day, her kingdom was under attacked by enemy. Sara lost her mother and a quarter of her people. Sara's homeworld was destroyed and she was captured with along her people. She was only eleven when her mother was killed. That was when Sara first met Vanitas and Sebastian. They were training under Kain. Sara noticed that they too have a keyblade like hers. Sometimes at night, She would come out of imprisonment camps to trained and try to master her keyblade. Sara was caught by Malchior and forced to reveal her keyblade to the enemy. They learned that she is keyblade wielder but almost a master. She was put in a group with Vanitas and Sebastian. They knew that she was no normal human but a first halfing to exist. As the years gone by, the trio became more than friends more like family. They were known as Sannin, the true masters of keyblade and power.