A transfer student Asai Mugi is a painfully shy girl. She is so shy that she can't speak when she becomes seriously nervous. However, for some reason, she is spotted and recruited as a member of the drama club.

At his father's command, Oguna, the youngest prince of Yamato, sets out to kill Takeru Kawakami, the leader of Kumaso. However, upon arriving in Kumaso territory, he is injured by the stray arrow of a young local woman named Kajika who is hunting game. Eager to compensate for the terrible mistake, she escorts Oguna to her village to treat his wound. But as the two rapidly fall in love, the prince makes a disturbing discovery: Kajika is Takeru's younger sister! Conflicted between his newfound love and family duty, Oguna seeks advice from the Phoenix, a legendary immortal bird that serves as Kumaso's guardian. Compelled to make a decision, will the Yamato prince betray his own for the woman he loves, or will he murder Kajika's brother as commissioned? Inspired by the Yamato Takeru Japanese legend, Hi no Tori: Yamato-hen chronicles the tragic story of an ill-fated couple, showing how true love can conquer hate and adversity even among the greatest of uncertainties.

Some time ago, the opening of a box known as the "Axia" set loose the previously sealed members of the Phantom Empire into the world. Rising to protect humanity from these spiteful villains are warriors known as the Precure, whose heroic feats have garnered them celebrity status on television screens across the globe. Hime Shirayuki, princess of the kingdom where the Axia was originally held, is one such warrior who transforms into "Cure Princess" to battle monsters summoned by the Empire. However, Hime's timid personality often hampers her success in fending off the enemy. Frustrated with her hard luck and determined to find a Precure partner, Hime befriends Megumi Aino, a happy-go-lucky teenager. When a general of the Phantom Empire appears, Hime fails to do much in the face of his attacks. Intent on protecting her new friend, Megumi ignites her hidden potential—transforming into "Cure Lovely." With their sights set on protecting the world, Megumi and Hime form a new Precure team known as the "Happiness Charge Precure" whilst embarking on a journey to discover true love. [Written by MAL Rewrite]

This is the OVA of The Galaxy Railways. The Galaxy Express 999 crashes on the off-limits planet of Herise and it's up to the SDF Sirius Platoon to assist.