Current Location: Re:Zero Universe, 600 years before arrival.

Rigel Natsuki had no clue what was going on.

The Kararagi Kingdom didn't have any History Records because the Witch of Envy destroyed everything when she went crazy beforehand.

At first he considered killing the Witch of Envy to save the world, then he learned that Echidna was teaching the Witches of Sin how to control their abilities.

Unsure why the future happened the way it did, Rigel Natsuki was questioning his next objectives nervously.

Stanford Pines was worried about the Grandfather Paradox that asked for their help, Rigel Natsuki had not even been born yet.

The risk of something going wrong troubled him.

Echidna had told him that the Oni Queen was one of his ancestors, however, Rigel Natsuki didn't know he came from a Royal Family at all.

Rigel Natsuki didn't even know the Oni Kingdom existed.

Echidna was shocked that the Oni Kingdom would be destroyed before Rigel Natsuki was even born.

Echidna quickly called for Pandora, the Witch of Vainglory, to help her see Rigel Natsuki's Memories immediately.

Rigel Natsuki, son of Subaru Natsuki and Rem Natsuki.

The Witch of Vainglory was amazed that she was the one to send him into the past.

Unaware of the reason behind Rigel Natsuki being the only one to arrive worried her.

Why was Rigel Natsuki so important to their future?

What was Pandora missing?

Subaru Natsuki, the father of Rigel Natsuki, hadn't been born yet.

Pandora must have sent him back before his parents were born by mistake, otherwise the Witches of Sin would need to investigate Subaru Natsuki to discover the real answer for themselves.