Ran→Sem～白濁デルモ妻のミイラ捕り～

One day, Anna goes missing. Riko, her older sister, looks for her, but she doesn't know where Anna has gone.... Days later, Riko meets a woman in town. Her name is Naomi, whose fiance is also missing after he entered a self enlightenment group.... Riko and Naomi decide to join the group to save them....