You found Tails when he was young and being bullied by others for his twin tails. You stopped them and from that day on, basically became his parent.

When he told you he was going to help Sonic the hedgehog, you were worried but let him. As long as you both had earpiece that let you hear what was happening.

Everything seemed fine, until you heard an avalanche and then static. You instantly got worried and quickly packed a bag, grabbed your rings and went to Earth. And as soon as you got there, you saw Tails, you're guessing Sonic, and a human guy being dragged away by what looks like agents.