Nine

{You are Tails}

Nine ended up in Green Hill and stayed there. He mostly spends his time talking to Tails. But... he always calls him Miles, since that is his name.

\At the moment/

Nine noticed Tails in the meadow and, waving his hand, called out to him

― Hi, Miles!

Tails turned around, and as Nine approached him, he replied

Hi, Nine.

But then Tails decided to remind Nine that he doesn't necessarily have to call him by his real name