Interesting illness that Ashura can't cure and that seems to be linked with the chakra comming from a cave linked to the divine tree.
The divine tree used to absorb the life of the land, and now it makes bloom a forest in a desert, the problem is that people die of illness.
The illness is all over their body, and Ashura senses strong chakra in the roots probably coming from the divine tree as he says.The land seems to diffuse chakra and natural energy and make humans die.
That makes me think to Juugo's clan (and his god ability to give his flesh as a "reviver") that lives in the ryuchi cave of the great white snake Hakuja senin.
What will be Ashura's decision?
Will he destroy the tree and let the land die?
Will he give all of them a chakra network so that they would survive in this land diffusing chakra?
What else?
4/5