Just in case you might want a visual ^-^
I know some people hate these kinds of things, so that's why it's only a blog post and not part of the main story. 
Just a couple notes, 
1. The order is not by main character. It's by whoever I feel like talking about.
2. I'm only going to add recurring characters. Of course I'll have other members of EXO and Super Junior show up in the story (Like Kai and Siwon as the a-holes), but I'm only including who you need to know!
3. I understand that all the names aren't accurate! I did what I had to do to make the relations work!

Enjoy~

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Lu Han

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Kwon Minaring (Mina)

Blind

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Park Choaya

Deaf

Unofficial sister of Mina

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Lee Donghae

Friend of Luhan

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Kim Kibum

Friend of Luhan

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Wu Kris

Former teacher to Luhan, Mina, etc.

Cousin of Luhan

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Hangeng and Zhou Mi

Brothers of Luhan

Hangeng-Oldest, Zhou Mi-Middle

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Lee Minseok and Lee Sungmin

Personality Disorder

Minseok-Younger, Sungmin-Older

Unofficial brothers of Mina

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Shin Jiminel, Shin Hyejeong, and Y

Dwarfism, Gigantism, Mute

Unofficial sisters of Mina

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Seo Sehun and Seo Yunaria

Kleptomaniacs

Fraternal Twins (Yunaria-Older, Sehun-Younger)

Unofficial brother and sister of Mina

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Kim Ryeowook

Paranoid Schizophrenia

Unofficial brother of Mina

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Kim Heechul

Dementia

Unofficial father of Mina

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Huang Tao and Lau Henry

Friends of Luhan and family