Trying to Find a Survival/Time Travel Manga.

[OneDream]

Hello,

So I remember a manga I read once, but I can't remember its name.

The story was basically about a whole school traveling back to feudal Japan and trying to survive when some Soldiers suddenly start attacking them.
With one of the MCs almost being a living encyclopedia about that time period.
And one of his classmates being a great Kendo fighter and managing to fight a bit.

So if, anyone know what that manga's name is... Thanks for telling me.

 

[LunaKara]

@OneDream
if I'm not mistaken it is this one
https://mangadex.org/title/12588/gunjou-senki/

 

[OneDream]

Thanks for the answer.
It's that one.