The Shinsengumi plan to move to a larger headquarters. Meanwhile, Sanaan continues research on a particular medicine in a dangerous way.
but you should not concern 
yourself with it.
لكن ينبغي ألّا تُؤرق نفسك بسبب ذلك
doch das sollte Sie nicht
allzu schwer belasten.
cela ne doit pas vous tracasser.
ma non dovreste preoccuparvene.
não há motivos para ficar preocupado.
не стоит так беспокоиться.