Allen Yeager, Demon King of Song

Two equally broken and sorrowful souls collide. Their fragile bond brings them together, and they return to the world along the currents of time.

Uta... no, Eren Yeager has been reborn in this world with a part of his soul intact. He never expected the Sing-Sing Fruit and the Demon King's score to still exist, though perhaps because of Eldia's special bloodline, he can control the Demon King's score completely at will...

Even in this tiny corner of the world, there is war and misery... No, some people don't deserve happiness. For the sake of those who do deserve it, I have to speak up, to do something, even if it means drawing my blade.

Then! I'll sing my heart out in this new world, too, and bring happiness to everyone! Eren thought, clenching his fist, then opened his mouth and sang once more.

There is still so much misery in this world! Don't worry, sinners who have no place in the new age. I'll drive every last one of you out!

The happy new age will be created by the world diva Uta, me, Eren Yeager!

[The long, dark-haired man walked to the place meant for a declaration of war. He merely tapped the microphone before him with his knuckle, and the people below shrieked and scattered in panic. After confirming the microphone was working, he looked at the hail of bullets already headed his way, sighed, then opened his mouth.]

Gah zan tak gah zan tat tat brak--

Mie neg on giek giek--

Nah phas tezze lah!!!

[The Demon King of Song, Eldia's devil, Eren Yeager.]

Warnings: This is a fusion of Uta and Eren. He's more ruthless than Uta, but gentler and cuter than Eren, somewhere in between. Eren is the dominant personality, influenced by Uta's kindness and madness, making him cheerful and outgoing but more extreme (sigh). This is not two souls in one body, but a fusion!

Eren with everyone, but the pairing is with Reiner. Eren is a gorgeous top. I don't know what happens in the future story, just that Eren knows he has the Sing-Sing Fruit ability and the score.

(The Demon King's lyrics are from NetEase Cloud Music. The original lyrics use runes, which I can't type. What a shame.)

Theme: Song can change the world