時空異邦人KYOKO

Kyoko Suomi is the princess of Earth in the 30th century. Kyoko lives among the commoners, unwilling to reveal her true identity and ascend the throne. The king will allow Kyoko to live as she pleases if she can revive her twin sister Ui, who has been trapped in time since birth. (Source: VIZ Media) Note: Includes three extra chapters.