Akio

Plain adorable!

I think this is hands down the best name ever. It's so nice sounding and looks great too. And it's strong without being burly.

Sounds a lot like the Summoning Charm from Harry Potter: Accio (which is from Latin meaning "I call" or "I summon").

Akio is a beautiful, calm, tranquil sounding Japanese name. The nickname Aki is really cute. Doesn't look like it's prone to be mispronounced, so it's a good name to consider in English-speaking countries.