The last of the sample voices for the upcoming situation CD Yan ero ~ ai suru ga yue ni~ has just been released on the official website. You can take a listen to them here. Remember to use your earphones/headphones!
Yan ero is recorded fully with the dummy head mic and is targeted towards the more mature female listeners. The main character Nao (CV: Sumeragi Mikado / Tachibana Shinnosuke) gradually goes out of control because of his love for you (hence the reference to 'yandere' in the title). The first sample voice happens before Nao goes yandere, and the latest sample voice happens after he turns yandere.
In addition to the sample voices, you can interact with Nao on Twitter. For the twitter bot there is a special time period between midnight to 4am (Japan time) called 'yandere time'. If you want to know what you should tweet to the bot, check the 'real-time' blog for Nao.
The CD is slated for release on 25 Jan. You can still preorder the CD on Comicomi-studio, Stanetto and Stellaworth have already stopped taking preorders. The one on Comicomi-studio is the first-press edition, if I'm not wrong, which includes three tracks of a relief route where Nao does not become yandere (?).