"This is the coolest extracurricular in the entire world."

"Mn."

"Why are you here? No one asked you to be here. Isn't this against the rules of the Lan family?"

"Mn."

"It's a great extracurricular and extremely practical. You get hands-on experience with a variety of mals and more intimate familiarity with the school's inner workings. It's like maintenance but much cooler."

Why does this school even have extracurriculars. That seems like it would get in the way of studying, building mana, and most importantly Wei Wuxian not being dead. 

"Also you get to tie rope to yourself and climb down the maintenance shafts!"

Literally how is this school not dangerous enough for you already.

"So we should probably talk strategy for how to get the wasp nest? One of us is going to have to set up and open the hatch. And there might be crawlspace on the other side of the wall panel that we'll need to go through to actually get the thing once we've taken care of the wasps. But we'll need to take care of the wasps first... how much do either of you know about parchment wasps?"

"Everything."

"Do you know any good ways to deal with them? I was thinking maybe some kind of smoke bomb?"

"We should do a smoke bomb! That sounds awesome! --Does anyone have a smoke bomb."

"Mix liquid soap and water and spray."

"Liquid soap and water doesn't sound like it would make a very good smoke bomb?"

"It is how you deal with parchment wasps."

"Ohhh. Cool! Does it fuck up their wings or something? I wonder how hard it would be to do a geyser spell but with soapy water..."

"It clogs pores."

"I think I should just climb up there with a spray bottle."

Oh no.

"Stop worrying so much, Lan Zhan! It'll be fine! I'm immortal!"

NO YOU ARE NOT

"Magic is expectations-controlled so if I believe hard enough that I won't die then I won't."

NOT HOW IT WORKS

If soapy water clogs pores why is she supposed to use it to wash her face.

"I think probably a spray bottle is not going to be enough for a whole nest of wasps? At minimum we should all have spray bottles."

"I will take several trips."

"You won't let me do anything fun."

"You want to be the one to open the hatch?"

"I want to climb things!"

"You can climb in and get the nest down once all the wasps are dead!"

No He Cannot.

"I would like the most dangerous job."

"Whoa, Lan Zhan, hidden depths."

"Okay... so... Lan Wangji can place and open the maintenance hatch, and me and Wei Wuxian will stand at the ready shields up holding spray bottles full of soapy water? This is our plan of attack?"

"And then I climb up and get the parchment wasps!"

"And the nest! We need the nest. I think someone needs it for some project they're working on?"

"I want some of the dead mals so I can see if I can figure out how to turn them into zombies."

"No one needs zombie mals."

"I do! I need so many zombie mals, Lan Zhan."

Rin has up to this point been watching quietly; her job isn't telling them the answers, it's pushing them away from solutions that are too dangerous to be worth the supply run and the experience. 

"If you turn them into zombie mals Hitomi-san will ban us all from doing this for the rest of ever."

"It's art. Cannot believe everyone has so little appreciation for art."

Right. This was the creepy guy with the corpse affinity.

"I think the upperclassmen wanted the nest and the wasps."

"That's also true! But even if it weren't, I do have to put my foot down, no zombie mals. And probably no messing with mal corpses outside the lab at all, at least until you're sophomores." 

"So when do we want to do the run? Sooner means probably fewer wasps, later means we have more time to prepare anything we need."

Lan Wanji was pretty confident about the soap and water thing and Rin-senpai isn't contradicting it, so they might actually be able to be ready pretty fast.

"Can we do it now? --Or once we have the soap."