Before translation: I'm guessing Eiki thought Komachi was slacking, when Komachi was actually getting her a gift?

b4 TL: Eiki attempts to commit seppuku because she unwittingly chided Komachi, who was preparing a gift for her.

Youmu would like to make sure it's done right.

Youmu always enjoys being part of a seppuku, even when she's not the suicider