Identify cant remember game title

[Bloodmaster]

protagonist male , lives with mother and sister if i rememeber correctly , and there is a family of strange (kinda vampire or some special bloodline) 2 or 3 sisters and father who is a doctor and mother . Your father left or died and was some kind of a scientist , in the house there is a room that is locked , and your sister end up in a hospital (if im not mistaken )

 

[TheBlueKnight]

protagonist male , lives with mother and sister if i rememeber correctly...

The vampire game people usually can't remember the name of is Love and Submission.

 

[Bloodmaster]

not that one

 

[Retro]

protagonist male , lives with mother and sister if i rememeber correctly , and there is a family of strange (kinda vampire or some special bloodline) 2 or 3 sisters and father who is a doctor and mother . Your father left or died and was some kind of a scientist , in the house there is a room that is locked , and your sister end up in a hospital (if im not mistaken )

its been a long-ass time since I played it but kinda sounds like this https://f95zone.to/threads/life-is-good-deamos.4431/

 

[Ankah]

even if you say it is not the game mentioned above, love and submission, the description fits perfectly with the game. are u sure that its not this game?