The hentai is a story arc series about a woman from the olden japan gets transported into the modren japan and later gets together with the guy
I remember a scene with them going to the beach and later both of them goes back to the past and have exhibitionist sex

Hime Monogatari by Ozaken

XP

This is damn late but thanks

Comparing to current market, this kind of drawing will not attracts customer. (so that is why most adult mangaka switch to e-drawing)

XP