South Sudan is considered one of the countries the most vulnerable to the adverse effects of climate change in Africa. Meteorological data show that since the mid-1970s, annual precipitation has decreased by 10-20% and average annual temperatures have increased by more than 1°C. Consequently, drought occurs more frequently and prolonged, especially in semi-arid areas where (agro-)pastoral people dwell. This presentation aims to reveal how rain becomes a political process, focusing on the difference in perception between local people and official discourse over the case of regicide among the Lopit, an agro-pastral people residing in East Equatoria State of South Sudan. On several case studies, it can be discussed how local people link the meteorological change with social relationship and seek justice in the current political context. In the Lotuho and neighboring communities, as droughts have occurred frequently in recent years, the case of the expulsion or killing of rainmakers has often been reported. For example, on July 2021, a rainmaker buried alive in a Lopit village because he was accused by the local people who recognized him as the one held responsible for failing to bring rain in a settlement. In response to the case of regicide, the state government attempted to persuade people to stop ‘pre-modern negative belief and practices’, claiming that the drought is not the responsibility of the rainmaker but caused by climate change. Considering this difference in recognition between people and state over rain and regicide, I first demonstrate how drought leads to the political rivalry between rainmaker and people in the Lopit. Then, I discuss how rain become a relational being, based on the understanding of reciprocal relationship between rainmakers and people.