Because you like Nymphadora Tonks in Harry Potter Series

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Maddy Perez seems like an angel until she opens her mouth. See them in Euphoria.

An inquisitive archaeologist, Professor Hershel Layton knows a gentleman leaves no puzzle unsolved. See them in Professor Layton.

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Margo loves mysteries so much that she becomes one. See them in Paper Towns.

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Yugi Moto is a gentle soul whose determination and talent make him a formidable opponent. See them in Yu-Gi-Oh! .