Nothing worries Satomi Oka more than the upcoming final choir competition of his middle school career—right up until he is accosted by a stranger from the shadows who demands, "Let's go karaoke!" As a yakuza, Kyouji Narita doesn't scare easily, but a terrifying prospect has driven him to seek Satomi's help. The boss is holding a karaoke contest, with the loser forced to get a tattoo to be selected and torturously applied by the boss himself! Oka has been to many vocal rehearsals over the years, but never one-on-one karaoke sessions with a gangster!!

Alicepia, a land of wonder that has existed somewhere in the world since ancient times, was once home to loving inhabitants known as the Alicepians. Their peaceful lives were disrupted when a mysterious monster, Jamaock, began to appear, threatening the sparkling brilliance of their homeland. If nothing is done, Alyspia will lose its radiance forever. This is the story of the "Princesses," whose unwavering songs of courage and hope shine even in the darkest times. A pop-song fantasia filled with energy and bravery -- Princession Orchestra!

Six days and nights, a strange case, and the boy returning to twelve years ago, can he break the shackles of the Kingdom of God this time?

The top of the immortals, proud of the world, as long as my ancestor An is there, there is the sky. There are three million sword immortals in the world, and they must bow their heads when they meet me. As a sword immortal, I should suppress all enemies in the world. Who claims to be invincible, who claims to be undefeated?