The substitutes begin operating as members of the Shinsengumi. Their first job is escorting Sakuma Shozan. However, something seems to have happened between Sakuya and Shozan in the past...
but those cannons made me realize 
time is marching forward.
bewusst, dass die Zeit
unaufhörlich voranschreitet.
pero al ver esos cañones,
sentí el paso del tiempo.
pero al ver esos cañones,
sentí el paso del tiempo.
voir ces canons
m’a rappelé que le temps passe.
ma quei cannoni mi hanno
fatto capire che i tempi stanno cambiando.
aqueles canhões me fizeram perceber
que o tempo está avançando.
а пушки напомнили мне
о неминуемом ходе времени.