It is the Taisho Period in Japan. Tanjiro, a kindhearted boy who sells charcoal for a living, finds his family slaughtered by a demon. To make matters worse, his younger sister Nezuko, the sole survivor, has been transformed into a demon herself. Though devastated by this grim reality, Tanjiro resolves to become a “demon slayer” so that he can turn his sister back into a human, and kill the demon that massacred his family.
In a distant future, Tetsuro is a human boy who wants his body replaced with a robotic one. This is possible, but to do so he has to reach the Immortal Planet onboard the space train Galaxy Express 999. Maetel, a beautiful and mysterious blonde woman dressed in Russian style, joins him in the long journey through space. Every episode sees our heroes arriving in a new planet's space train station.
Magical Princess Minky Momo will save the day!
After the party of heroes defeated the Demon King, they restored peace to the land and returned to lives of solitude. Generations pass, and the elven mage Frieren comes face to face with humanity’s mortality. She takes on a new apprentice and promises to fulfill old friends’ dying wishes. Can an elven mind make peace with the nature of life and death? Frieren embarks on her quest to find out.