Sarcandra glabra (Senryo)?  Ardisia crispa (Hyakyuro)? Juryro? Manryo?

This little plant IS very Japanese, though, and I doubt I could have found it around here very easily. It was in almost every Japanese garden that I visited in November, showing off some very glossy green leaves and bright red berries. It grows to about 3 feet tall, but I have no idea how long this little pup, only a few inches high at the moment,  might take to flower or fruit. It seems to be doing well here, but it also looks like a slow grower. Any idea what it might be in Latin?

And the final word is… the Japanese says Manryo, and I’m going with some kind of Ardisia…