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...
Sogen-chan, are you sure that was 
the right amount of gunpowder?
Sōgen-chan, passt die Menge
des Schießpulvers wirklich?
Sougen, ¿no crees
que es demasiada pólvora?
Sougen, ¿no crees
que es demasiada pólvora?
Sôgen, t’es sûr
de tes dosages de poudre ?
Sogen, sicuro che fosse
la quantità giusta di polvere da sparo?
Sogen, você acertou mesmo
na quantia de pólvora?!
Согэн, а ты правильно рассчитал порох?