Jin delivers a lecture at the Seitokukan in Nagasaki in order to promote penicillin. In fact, he has come all the way to Nagasaki not just to popularise penicillin, but also because he has made up his mind to see Ryoma and tell him about the assasination. However, he is not able to meet Ryoma. Just when he has half given up hope, Ryoma suddenly appears in front of him. Jin is overjoyed to finally meet Ryoma, but the Ryoma he sees is not the man he knows. Ryoma has been obtaining weapons from Glover and making money selling them to Choshu, which is at war with the shogunate. A troubled Jin visits Choshu with Ryoma. What he sees over there are a large number of dead and wounded among the shogun’s army. They are believed to have been shot with the guns Ryoma had sold. Ryoma had coldly watched that battle … Darknes edges closer and closer to Ryoma.