某天，被移送至人工岛之一MERMAID的少女·处女守刚在岛上醒来，就突然遭到了某人的袭击。拯救了陷入险境的守的，是新近被移送来的少女·敷岛魅零。但敌人的追击并未停止，魅零和守渐渐被逼入绝境。在感觉到已经走投无路的时候，魅零吻上了守的双唇，守的身体被耀眼的光芒所包围。将化作锐利长刀的守紧握在手中，魅零开始了反击……
女武神驱动 美人鱼 (季节 0)
Please, Teach Me (集 1)
播出日期: 2015-12-18
运行时间: 2 min
概述: In order to unlock higher powers as an Arm, Mirei asks Mamori to try different things to bring her pleasure.
Can't Do It Alone (集 2)
播出日期: 2016-01-27
运行时间: 2 min
概述: During a soak in the bath, Charlotte thinks about who she will use in her next sexual misdeeds, looking back on her past conquests of other women.
Lonely and Unable to Sleep (集 3)
播出日期: 2016-02-24
运行时间: 2 min
概述: Having just left the shower, Kasumi lies on her bed, half naked, looking back fondly on her time with Hibiki and their lovemaking.
The Actress in the Mirror (集 4)
播出日期: 2016-03-23
运行时间: 2 min
概述: Contemplating how she is forced to disguise herself, Akira stands naked, wishing she could be back in the arms of her lover as she tapes her breasts down and assumes the mantle of Governor, wearing a uniform that makes her appear as a man.
Believe in Me, Believe in You (集 5) 10.0
播出日期: 2016-04-27
运行时间: 2 min
概述: While they have sex, Lady J notices that Rain is more lively and motivated than usual, and after having sex, she finds out that it's because Rain saw how two of her peers, Mirei and Mamori, were close together.
Lonely Chaser (集 6)
播出日期: 2016-05-25
运行时间: 2 min
概述: While looking up a picture of Mirei, Momoka begins to relive old memories of how they had sex together, and muses on the concept of her being able to fondle her in the same way she did before, and later destroy her.
季
集 12
集 6