There’s no scenario here, it’s just the Danmachi characters, Lili and Hestia, paired with the series’ male main character, Bell, having fine sex.
Plain and simple, as long as the art is to your taste, have a go =)
We owe this one to Animefan71109, NekoHime, Underscore and Phalodite, from Hennojin, thank you! 
By the same artist, I also share RE:Zero After Story and Avrora No Oyome-san Project..
