Why do Japanese names end in "i" sometimes add an "n"

it's kawaii desu ne neko pyon ^_^

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>>1393574
It happens. "Yamakan" is the nickname of a director, for example.

>>1393574
I have no idea, but there are Japanese speakers here so I'll bump the thread for you.
Names don't generally seem bound to grammatical rules, though.

>>1393574
Is this a serious question, or do you really know nothing about it?

Read:
https://japanese.stackexchange.com/questions/30491/what-connotation-does-the-ending-n-to-a-japanese-female-name-have