What makes this extra funny is that there really are Taoist sexual arts. (Having sex with younger partners and restraining one's own release supposedly lets you siphon off their abundant life force and extend your own life.)
So one of the viable Taoist ways to live forever is by having lots of sex with people who are younger than you (although that's going to be most everyone if you're immortal).
Why?The lady hermit from the mountain took her away, saying that she is to undergo training.Oh my.Reimu-san will be away for a while.I'm house-sitting.In that case, it would be the Principle of Yin and Yin.Training...
Hermit...
I see.They must be doing bed techniques tra...Ibarakasen chapter 5
At the Hakurei Shrine