Usamimi Boukentan Sekuhara Shinagara Sekai o Sukue Episode 1 English Subs

A mute student suddenly got teleported into another world that is engulfed by the "akui". Legends say that a hero from another dimension shall come forth in order to beat the akui. Our hero's companion called Unasaka is a forest spirit and through sexual acts they will both be able to overcome this darkness.