Shaka no Musuko

A man who claimed to be "Shaka's son" arrives in the peaceful village of Shogitani. He acted in mysterious ways, such as offering a large sum of money to help a village girl in debt, and scattering 5 million in cash around the village with the help of his female triplet entourage. Meanwhile, one by one, the villagers began to fall ill with high fever. ......!

(Source: eBookJapan, translated)