Perhaps you have noticed a woman who believes that she's a super strong karate fighter? This is a story about that type of girl. She isn't scared of nighttime walking or anything. But she better stands outside, because a strong demon will fuck her tonight!
Story line of Demon Girl and Angel Girl Proceeds and here we've Shinobi Girl. She is a ninja babe who have to fight against space creatures. As author says this game is not done yet, but you could get fun.