I want to write down the timeline to help myself understand:
Kokuyou and his brother were living with his mentor who experimented small pox on these two and many other kids/his disciples. Mentor inoculated Kokuyou with a human strain and his brother from a livestock strain. Kokuyou's face was disfigured with poke marks and he almsot dies. His brother is fine. Mentor wants to then inoculate himself against small pox. Kokuyou switches his livestock strain with a human strain and he dies. Kokuyou's brother kills himself out of guilt. Kokuyou flees that place, is attacked by a bandit. Kokuyou does first aid on himself and seeks asylum in a village where Yo and her family too live. Yo and her family are kind to him. So he incoluates them with small pox to build immunity and teach them medical stuff. The bandit lives in the same village and is trying to turn the village incl. village chief agaist him. Kokuyou infects bandit with small pox to make him a "seed bed" to take samples to inoculate others (??) Small pox spreads in the village. Since the village was hostile to him and he was almost driven out he justs ups and leaves when small pox pandemic starts and does nothing as "revenge". Village chief somehow survives, has half baked idea of how the small pox "vaccination" works and infects a small child starting a new pandemic. village chief is in search of Kokuyou for revenge because he couldnt "cure" small pox with his shamanic techniques and was jealous of kokuyou's reputation and "good life". village chief is arrested for attack on the imperial family member and for starting the pandemic and dies.corrections, additions welcome. Thanks.