Vampire Notes, a hentai RPG developed by ninjinpasta. Released December 11, 2018. Download on DLSite.com for $15.00. For PC Windows. No voice acting.
Alicia sold her family heirloom to pay for mobile game microtransactions. Filled with regret, she begins a journey to recover the heirloom. As a vampire, this is her first time meeting humans! Hopefully theyll be nice to her!
Source: N4G PC [NSFW] Hentai RPG Review: Vampire Notes