Raki Kiseki is a second-year middle school student who transfers to Star Harmony Academy to become an idol. However, when she uses an Aikatsu Pass she received from her big sister (an Aikatsu engineer), something mysterious happens. Lots of doors appeared before her, and when she opens them, she meets Aikatsu idols she never knew before, such as Yume Nijino (Aikatsu Stars!). Raki vows to design her own premium dress and perform in it on stage. (Source: Anime News Network)

Shou Zama is an ordinary 18-year-old from Tokyo who finds himself summoned to the medieval fantasy world of Byston Well. Upon arrival, he is put into service under the ambitious lord Drake Luft, who seeks to greatly expand his power. Those like Shou who come from "Upper Earth" possess strong aura power and are ordered to pilot "Aura Battlers," insectoid mecha designed by a man named Shot Weapon, who also came from Upper Earth. However, Shou's alliances quickly change when he meets Marvel Frozen, a young woman who has decided to rebel against Drake's political agenda. As he realizes the lord's true intentions, the boy chooses to join the fight against Drake and team up with Neal Given, who leads the resistance movement. The resistance isn't alone—Riml, daughter of their enemy and Neal's secret love, aids their efforts, hoping to escape from her father's clutches. As Shou finds himself fighting alongside his new comrades, they put their lives on the line to prevent the villainous Drake from taking over Byston Well before it's too late.

"Sasuke Sarutobi" is an average college student at Kyoto University studying time slips as a hobby until the day he falls into a time slip himself, transporting him to the Sengoku Period. Upon arrival, Sasuke encounters several warlords he could only ever dream of meeting: Toyotomi Hideyoshi, Tokugawa Ieyasu, and the famous "Demon King of the Sixth Heaven" Oda Nobunaga, who takes him in as a vassal. Introducing several modern concepts to the warlords varying from playing tennis to sending chain letters, Sasuke finds his place in an old but utterly new world. [Written by MAL Rewrite]

The story is about Yun Che, the main character, who is cornered by his enemies at Cloud's End Cliff on the Azure Cloud Continent.