I get what you're trying to do here. The start of the convo was jokes and all and maybe Akai never took it as one. And why the hell would you ask what is NSFW when you can just search the meaning of it. Simple. I'm not on both sides but Akai should've handled the situation like an adult. On the...
I seriously thought this was the real chapter. I was like what is happening to these characters? There's clearly something wrong here. Then I checked the date. It was April 1.