Our Chain Writing : Joan And His Missing Sister

It is the chain writing  Ally started and Class 14 worked on for more than 45 minutes. It was messed up a little bit since about 10 people, who have different mindset, different culture and different personality, wrote it together. I will write all the sentences I and my classmates wrote on the chain writing paper here, so please copy it and make it better. (I used different colors for the writings of different writers.)
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When he returned to his room, Joan felt dizzy. Maybe, it is because of the cold weather. Or, it may be because of the strange document he found in the garage a few minutes ago. The document was about the death of his younger sister, who died about 4 years ago. His mother and father said that his sister died because of a traffic accident when Joan asked them about his sister's death.However, according to the document, his sister was murdered. But, maybe, to prevent Joan from getting shocked, his parents lied that she died because of the traffic accident. Joan was so sad that he could not think anything for the rest of the day. So Joan's best friend James came and gave him a secret CIA files about his sister's death. But Joan said, "I don't need it!" James was so surprised that he slapped Joan's face. After that, James got a mental problem and became a shy boy. James worried about everything. He couldn't talk well. He always mumbled.  James eventually bought unicorns to kill Joan, since Joan said "I don't need it", when James gave him the secret documents from CIA. James bought some unicorns, which spit fireballs on people's faces. Later that evening, Joan's face was caught on fire. "Ah, my face!" said Joan. Joan ran away and met Brian in GIL, a local night club. He was dancing with Anna. In fact, Brian was the back-dancer of GIL and Anna, who also worked as a MC of GIL, had a crush on him. So, she proposed to Brian. But Brian did not accept her proposal and she cried all day long. As a result, she could not go to GIL's 'Ophan Gangnam Style' concert. Truth be told, Brian liked her but he could not accept the proposal of Anna because he was very shy. A few years later, Anna was assigned to be the MC for a GIL concert. She was beautiful in her clothes and Brian loved her so much. He proposed her. But Anna just slapped him, saying, "you did this to me, as well. So I can't accept your proposal." She left the place leaving Brian shocked. Joan, who was there, thought Anna was similar to his dead sister who was Anna, as well. At the moment, Joan remembered that a few years ago, when he said "I don't need it!" to his best friend James, James was about to say something. It might be something like "according to CIA, your sister is alive but just ran away from your family." Joan ran until he finally reached his room, which was on the 3rd floor of GIL building. When he finally arrived at his room and read the documents from CIA, he started to cry with happiness.