Tamani’s Hentai Adventure, a cheating-themed hentai RPG visual novel developed by BirdCage. Released April 6, 2014. Available for download on DLsite.com for $10.00. Available for PC Windows. No voice acting.
You play as a loving newlywed wife who’s moved into an apartment with her new husband. Tamani is a shapely red-haired beauty that gets corrupted. While at first she’d do anything for her husband, she soon finds there are plenty of men in town that will do anything to have her.
Source: N4G PC [NSFW] Adult Game Review: Tamani's Hentai Adventure – Hentai Reviews