[He is the white noise in your walls, that's how he feels in the Communion, just shy of obtrusive and lurking on the fringes. He observes other people introduce themselves, and feels like people are being rather loose and fast with their capabilities. He understands that they're all allies, but still, just as many are strangers, in a way.

So, in short, succint words, he introduces himself thus:]

Byleth Eisner, mercenary. Swordsman and practitioner of magic, with the ability to shapeshift into a draconic form. I am also an avid writer of romance stories.

[One capability is not like the others.]