Reincarnated: I Couldn't Stay Home, So I Went Adventuring with the Old Man

When a five-year-old girl wakes up, she has memories of another world.

Oppressed in the manor, she accepts reality and begins cultivating so she can survive on her own, gaining unimaginable power in the process.

As the little girl continues training, she happens upon an older male adventurer.

The old man, who calls himself a sword, invites her to travel with him. She agrees, and they set off together...

A sickly, self-centered, utterly wicked little girl and a completely solitary old man, along with a battle of wits against... um, a spider-like fairy...