Keep thinking.
The protagonist is the daughter of Voldemort and Bella in the parallel world (no relation to Delphi). Her name can be translated as Dominator, but she is always referred to as Dominator. (If you are interested, you can translate it)
Comes with plug-ins: protagonist aura, Parseltongue, genetic bonus, dark mark bonus, black magic bonus... Several
Note: The heroine is probably a Gryffindor... (No)
Traveling through the timeline, it was probably the second grade...
Voldemort here will be hacked to death by me...
There are people who have traveled through this world...