Pairing Shepard / garrus Admiral hackett/fem harry David Anderson/luna lovegood

This is my first fic so please tell me your opinions and criticisms.

Hijo de la luna.
Today is the final battle. I am not sure if I am going to survive or not so I decided to give my godson the lordship of the ancient house of black which is his right by blood. I also give him the lordship of the ancient house of potter which is also his right because I blood adopted him and he is my sole heir.
I also decided the following decision in my will.
1_ remus lupin and tonks are given 3000000 galleons from my vault and my properties in America. P.s leave this cursed place remus . Believe me you won't regret it.
2- I give the twins, charlie , bill and Arthur weasely 3000000 for each. P.s griphook give the twins the marauders prank notes. 3- I lord Hadrian James potter accuse the following people; molly, Ginny, Ron, and Hermione, of the following crimes

1 robbery from the ancient house of potter 2 giving me love potion since my fifth year in Hogwarts 3 finally, if all of the previous people mentioned plus Mrs. Pones are reading this will. Then, this means that ghey succeed ed in completing their betrayal and killed me. P.s madam pones, the evidence of their crimes is in a vault under your name. You will be the only one who has access.
It is not like that they are going to survive my punishment in the first place. I also decided the following decision because of what they did to Luna as well. I won't betray Luna and disobey her final request.
I lord Hadrian James potter call the life depths that Ronald weasley, Hermione weasley, molly weasley and Ginny weasley . I ask that the lady of magic punish them for the crimes that they have committed towards me and my adopted sister.
This is my last will and testament.
Lord Hadrian James potter black

When griphook read the will of Harry, no one moved even madam bones . They didn't even have time to look towards the murderers with hateful glances before the screaming began. Hecta had been furious because her champions and son was murdered. So, she decided to remove their magic through a painful process that would take a week of pain until their last breath.
Then, they would enter mandos halls where he is going to play with them for centuries if not for ever because of their betrayal of his companions and one left the murderers in their agony in the bank. During all of this Harry and Luna were enjoying the torment of their tormentors. Then mandos came and give them two options. I know my dear friends that both of you suffered a lot in this war but I need your help. But before I tell you anything you need to know one thing. Both of you are not forced to obey or accept my request.
The first option is that you move your journey to afterlife.
The second option is a bit tricky. Both of you would be reborn in an alternate universe where you would also have sibling who is going to be the champion of her people. Both of you plus your sister would find your mates. There is one more thing that you need to know is that none of you is forced to join the war or accept this option at all. It took them one glance towards each other before saying "we accept your offer".