"Synergismia" which is an erotic-themed novel is for adults only. You, your stepsister Jen, and Sarah are the main protagonists in this tale. The outcomes of the relationship between you and your stepsister Jen is contingent on the choices you make. There's no need to elaborate on the story. If you are a fan of stories that deal with complicated relationships and numerous options, and enjoy watching sex scenes which can seem a bit kinky, you should just enjoy the game. You can also check out our website for more games like hentai and erotica!