Every 300 years... so I guess if I've never fought it before, you've done your job pretty well! [ He's done enough time traveling, so if he saw some kind of crazy demon snake or its vessel, he probably would've remembered. ]

Doutanuki-san brings some back to the apartment once in a while. They're really good! He's such a good sailor... [ And Kogitsunemaru nods, his little hairears wiggling as he laughs. ]