MHA/Honkai Impact 3rd: We Won't Fail Again!

Izuku Midoriya and Kiana Kaslana during The Final Battle failed to stop All For One, Shigaraki, Nanook, The Will Of Honkai and Kevin Kaslana from making their Plans come True, Both heroes watched all their friends die right in front of them, being unable to save them as they were to stop it, because their Body was too broken.

Before Shigaraki could kill them, Katsuki and Mei like everyone else sacrificed their own lives to save both of them.

They were taken by Aizawa, Theresa and Hawks and were hidden with Eri, who saw Izuku and Kiana as Her Older Brother and Sister/Father and Mother. Later both of them broke down crying over the fact that They lost people Close to them, but that fueled their determination to stop them.

After many Years of Training and Multiple attempts they failed, lost many of their friends and the world become a Wasteland, after Eri's death Izuku and Kiana lost their will to live and lost Control over their Anger and Hate and decided to End All For One and others once and For all, which In Result turned Kiana into Herrscher Of The End and fused with her Original Self and Izuku become an Godkiller and Hunter.

Both of them walked bloody path to Kill and Stop The Alliance for Good, they all met in Nagazora and fought, where Izuku and Kiana sacrificed themselves to stop them.

After that, both of them closed their eyes and suddenly Izuku woke up and found himself in Sports Festival, while Kiana found herself at the Middle of Valkyrie Exams.

Will they Succeed in stoping Shigaraki, The Honkai and other enemies once and for alone by themselves without help of Their Loved ones? Or they will fail again, leading themselves in Path of Self Destruction? Or their Friends, Loved ones will save them from themselves and Finally get the Happy Ending they Deserve?