https://www.youtube.com/watch?v=0W5IAtze2LE&feature=channel_page
https://www.youtube.com/watch?v=pI0Csgsbdx4&feature=channel_page
https://www.youtube.com/watch?v=Ae0VK1TUGFY&feature=channel_page
https://www.youtube.com/watch?v=Ae0VK1TUGFY&feature=channel_page
https://www.youtube.com/watch?v=jnQaFg59xXo&feature=channel_page (indirect)
https://www.youtube.com/watch?v=4239SPiGZ18&feature=channel_page (indirect)
i think its a castlevania game, succubus killing the hero with kisses.
Also check out his channel "mugenHenLover" he is obviously a fan of female hypnos, his videos are a gold mine