mc's actions caused yang jagak's death, but that happened because the mc went to investigate the jiangshi which he first learned of via. the purple heavenly demon -- yang jagak, who had died due to the poison already before the time rewind occured
mc's actions caused yang jagak's death, but that happened because the mc went to investigate the jiangshi which he first learned of via. the purple heavenly demon -- yang jagak, who had died due to the poison already before the time rewind occured