It's simply a series of loli erotica aimed at masochistic gentlemen (with occult themes). 
 
(Source: Afterword from chapter 3) 
 
Chapter 1 
A loli succubus relentlessly milks her prey. There are worse ways to go. 
The last is a sweet sweeeeet sweeeeeet happy ending. 
 
Chapter 2 
A cursed doll appears in the room in this tale of sweet reverse NTR and sacrificed life. 
 
Chapter 3 
Being sexually played as a toy of two girls who you meet in a hot spring resort. 
 
Chapter 4 
Three girls sexually bully an oniichan. 
 
(Source: DLsite English)

Episode 1 & 2 
 
Chapter 1: You Inma Miyu (幼淫魔・みゆ) 
A man who was very desperate and hopeless tries to call a Succubus. (Through internet media info, he tried to draw magic circles and rituals for calling Succubus.) One night, suddenly a little girl came to his house ringing the bell, amused to see a Succubus coming through the door of the house in the form of a little girl. He decides to let the succubus do her job so that he can feel better. 
(Source: Translated and Edited from Nekopoi)(revised) 
 
Episode 3 & 4 
 
Chapter 2: Shoujo Ningyou Nina (少女人形・ニナ) 
One day a doll appeared in the room of our protagonist. The doll was in the form of a girl, cute but slightly off, in some way that he could not put his finger on. Eventually he attempted to get rid of it, but couldn't bring himself to. So he took care of the doll and suddenly he finds himself with extraordinary luck, everything is going his way! But then one night he thinks he hears the doll talking to him..what the hell is going on?!

__Height:__ 149 cm

[Profile](http://www.pro-fit.co.jp/talent_manaka.html)

She is a voice actress affiliated with Pro-fit.

Tiny Evils chans! 
1. Miyu no Moe Sode Manko (みゆの萌え袖まんこ) 
2. Nina no Omamagoto Fella (ニナのおままごとフェラ) 
3. Shoujo-tachi e no Shiawase Dive (少女達へのしあわせダイブ) 
 
Tiny Evils chans! 2 
1. JS Succubus no Senyou Seieki Server (JSサキュバスの専用精液サーバー) 
2. Gekioko Hiyake Shoujo no Chinchin Kosatsu Shokei (激おこ日焼け少女のちんちん絞殺処刑)