[Someone had to be polite, when putting him next to Ai for the last thousand years. Ai was polite but she was also very brash and blunt like the edge of a knife. Ren balanced her out, luckily.]
Oh!! I-I'm Ren.
[He didn't know what to do, meeting his maternal grandfather like this. It was so strange. He'd heard stories, sure, but that didn't prepare him for the real thing.]