[More or less. A sword, but also a sword who is over five hundred years old. He figures there's plenty of experience to go along with those years. So he seems a bit baffled to hear Urashima say he's "really not that good".]

I believe it would be about...three years now. And the majority of that has been...well, as you say, merely training. It wasn't until very recently that I have been able to start putting that training to real use. [Like, as in real battles with monsters that could very likely kill him.] Mere months, really.