A book about a village with a strange custom where it's rumored that handsome young men will perform sexual favors with a straight face

[Kanshouyako (miska)] InCha Succubus ♂ Ga Chuu Dashi Shite Morau Tame Buzama ni Dogeza Kongan Suru Hon | InCha Succubus - The Book of Humiliatingly Kneeling and Begging to be Creampied a Dark Succubus Kneels and Begs in a Disgraceful Manner to be Creampied [English]