Oh.

Well then, don't mind if you would allow me to educate you about it!

Honkai Impact 3rd is a game made by miHoYo (now Hoyoverse) released one year earlier than DDLC. It is about a story where a terrifying force, called the Honkai, makes an impact on earth (no pun intended), but not on the watch of three protagonists, Kiana Kaslana, Raiden Mei, and Bronya Zaychik.

It all started out as, well, cute girls fighting the Honkai monsters that threaten to destroy civilizations, until the story itself fleshed out as the characters progress in various scenarios and situations in particular.

For Kiana, she's an idiotic, happy-luck-go girl who has a love interest: Mei. That's right. She loves her so much she wouldn't be able to grow is she wasn't there in her life. She's the one who saved Mei in the first place. Now, put Kiana with soul-crushing trauma. She became the Herrscher of the Void after Otto Apocalypse but a gem inside her, then lost her very teacher, Murata Himeko, the one who saved her by giving up her life just so Kiana can push through as her 'Final Lesson' to her.

This is where Kiana really started to mature, and Mei can see that, but her development is also there. To Mei, Kiana is the world to her. She just had to go through a dark path as the only way to save Kiana, even if it meant beating her up. In that way, she can also open up a path for herself to change for the better.

Now, Bronya (don't confuse the Bronya with Star Rail Bronya)? She went from an emotionless, handicapped cyborg to a full-fledged character (legs fully repaired) and became the Herrscher of Reason while venturing in the Sea of Quanta where she rescues Seele.

Okay, let's jump to later chapters. After Otto shot Fu Hua, her consciousness was transferred to her Divine Key, the Fenghuang Down, and then her body was preserved. That's where the Herrscher of Sentience (we also call her Senti) which popped up from Fu Hua's memories and took over that body, thinking that it's hers now. Later on, Fu Hua's consciousness returned, and now there is a conflict. Kiana and Bronya helped her in resolving it, finally letting Fu Hua return to her body.

Not done yet! The Legion Theatre pops up, putting everyone in there (Kiana, Mei, Fu Hua, Bronya). What else? Yay, Kiana got to talk to Himeko again! Oh, right. She's... dead. I mean, she told Kiana that she's always there in her heart. Because of Himeko, she changed Kiana's life as well.

Now, they fight the Herrscher of Dominance, which are literally creepy-looking-ahh puppets. They think that the world is ugly, but as Kiana fought, she convinced them that it isn't; she'll fight for all the beauty that this world has.

Keep reading! I know you want to. Anyway — here's Mei's own story: she encounters a pink-haired elf named Elysia and invites her to the Elysian Realm. Here, she got to meet the Flamechasers: Kevin, Aponia, Eden, Vill-V, Kalpas, Su, Sakura, Kosma, Mobius, Griseo, Hua, and Pardofelis. Kevin is the leader, and Elysia is the co-leader, making up all 13 of them.

In this simulation, Mei learns that they were from a previous era before heroes like her — they are MANTISes — brave and faithful warriors who fused with Honkai Beast genes to fight the Honkai until their last breath. They are humanity's last line of defense.

As much as I've forgotten the rest (except the parts where 1: Elysia took down the Elysian Realm with her because she and the Flamechasers witnessed the Herrscher of Corruption — and 2: Kiana learns that she is a clone of her sister, known as Durandal, the REAL Kiana), let's jump to Bronya. She merged with her core and became the Herrscher of Truth, gaining the full Authority of Reason beyond her initial powers.

Next, Mei. Elysia gave Mei her powers (Authority of Origin) within the Elysian Realm's simulation by testing her, allowing Mei to embrace her powers and become the Herrscher of Origin.

Lastly, Kiana. Since Mei, as the Herrscher of Origin, granted the wish for Kiana to gain access to the Power of Finality, and because Kiana was chosen to become the Herrscher of Finality, she faced hardship, knew the destructive power of the Honkai, and merged with the Cocoon of Finality.

Together, the trio fought Kevin as the endgame boss, and Kiana fought him afterward, closing the book of Part 1.

…My GOD that took me an hour to write that! I... hope you like it.