[Too bad she's too stubborn to admit she is feeling exhausted. Though in her eyes, Yui doesn't want to burden any of the swords with her problems.]

Oh... [Another sheepish laugh, ducking her head down in embarrassment while tucking a stray lock of hair behind her ear.] I see.

[She knows she's working harder than usual but she doesn't want to be inadequate saniwa. All Yui wanted is to prove to her family, to her swords that she is the right choice, that she will be able to lead them to victory and prevent tragedies of history of happening.]

You don't have to worry about me, Yamanbagiri-san. [She looks up again, that same tired smile on her lips.] I'll be fine. I'll...[She stops, lifting hand up to cover her mouth and stifle the incoming yawn.] Sorry! Ehem, I just need to finish this [She gestures to the scrolls.], and check out how repairs are going and then I'll--