you had just got done defeating an Uminyudo, a huge water Yokai, and you suddenly run into Minamoto no Yoshitshune, playing a flute. he then looks at you and bows.

"Greetings, my shiftling friend. I sense you have a similar blade, yes?"

he asks, holding up the Sohayamaru, a Yokai-slaying blade as Kurama Tengu examines you.