Ai No Musume ~Yurikago~ Lyrics - Crest of the Stars

Ai No Musume ~Yurikago~ Lyrics - Crest of the Stars belongs to the anime Crest of the Stars, take a look at the argument:

In an unforeseen era, humanity finds itself relentlessly besieged by the fearsome Abh Empire, an advanced race of humanoid beings armed with unparalleled technological prowess. Desperate to reclaim their sovereignty, mankind unites under the banner of the Four Nations Alliance—a valiant resistance comprising the United Mankind, the Republic of Greater Alcont, the Federation of Hania, and the People's Sovereign of Union Planets. Introducing "Seikai no Monshou," an enthralling chronicle that delves into the riveting journey of Jinto Linn. Plunged into the depths of turmoil at a tender age, Jinto's own father, once the esteemed president of Martine, sacrifices their beloved world for an esteemed position within the empire's ranks. Now, bearing the weighty title of a young count, Jinto must navigate the treacherous seas of Abh nobility, coexisting among those who have subjugated his people. A beacon of hope arises in the form of Lafiel Abriel, the dignified princess of the Abh, who swiftly becomes Jinto's steadfast comrade. Embarking on their voyage to Jinto's newfound educational institution, nestled deep within the heart of the Abh homeland, fate intervenes with an explosive clash of cosmic proportions. Caught amidst a cataclysmic space battle, where the forces of the Alliance defiantly contest the empire's dominance, our protagonists find themselves unwittingly thrust into the throes of an all-encompassing war—a disquieting precursor that heralds an epochal clash between the indomitable Abh Empire and the tenacious spirit of humanity.

Now that you know the argument, take a look to another songs of Crest of the Stars also called Seikai No Monshou | 星界の紋章