@lionfromnorth I'm confused about that as well. Is the sister Pipi a different person than Ariadne, or are they one person and there's some time travel shenanigans happening? Rereading the first few chapters, they never show Ariadne meeting Pipi in person, so there's no reactions to gauge.
In chapters 118 and 119, it's gonna be revealed that both the Leana currently travelling with Lacile and the flying city of Ariadne that we saw back in chapter 1 are from 10 years in the future.
Due to a time paradox, she has memories of Lacile getting killed by Barboros in an alternate timeline when she is around about 5. In that timeline, Lacile never left his hometown in the mountains. This gets shown in the raws for chapter 118.
Also do you remember the mystery of the death of the Lusa King back during chapters 42 and 43? Well in the raws for chapters 120 and 121, it gets revealed that the killer is none other than Barbaros himself.
Well Barbaros also found the Founding Light apparently and did something to it, causing changes in the world.
It also gets revealed that both Barbaros and his daughters are part Lusa too. Which explains why that Lusa tribesman was able to sense Leana's powers back during the Tomb of the Lusaka King arc.
Also this explains why Leana has those powers like how she revived Lacile after he died during chapter 4 and also on how she saved all those Rato villagers during from that dragon during the Rato versus Tsuta arc.