"Both of them are close friends." Okita and the Shinsengumi discover where Ryoma and Izo are hiding. Mugensai was also there. On the other hand, Ryoma and Izo split into two groups to prevent the chronometer from being stolen, but they are cornered by Mugensai and the Shinsengumi. Yoshinobu rushes to rescue the emperor for Yamazaki who has collapsed. Takasugi and Katsura are still at odds. What did Kondo say to Mugensai, who had a timepiece in his hand behind the complicated relationship?