Burkhart-san also knows that he particularly was saved by Elise.
Or perhaps I should say, it was Margrave Breithilde-sama who didn’t introduce a decent girl to Wend at any rate.
If you ask me, it felt like 『Haven’t you given up already?』
“Now then, all that’s left is to explore and search for the exit leading to the surface. Everyone has to get some proper sleep for their bodies. You guys too. Hurry up and go sleep.” (Burkhart)
“Honestly, you are saving me here.” (Erwin)
“I am sleepy as well…” (Luise)