A Cook, A Doctor, A Ghost and A Ronin.

Training

Tanjiro is lying down on the ground, all battered and beaten black and blue. He's not the only one that is beaten black and blue like this. Inosuke lay unconscious beside Tanjiro. Underneath the mask, Tanjiro is sure the boar is sleeping like a log due to exhaustion.

Then there's Zenitsu, who is passed out not too far from them. Zenitsu is the first one to passed out first, with bubbles frothing from his mouth. That's understandable, since he's the one with the weakest endurance amongst the three friends.

But it's not to blame Zenitsu because he's weak. He's sure that if a normal demon slayer are here, they will be knocked out much earlier than Zenitsu. Even Tanjiro wanted to passed out right now. He looked to the sky. How did this happen?

Earlier...

"Here, all of you take one each. Inosuke, you take two." Law handed each and one of them a wooden sword. He gave Inosuke two swords since he's a two-sword user. 

"Are we going to do a spar? Then why do we have to wear a blindfold?" Zenitsu asked what's the point of using blindfold if they are going to spar?

"Don't ask why, just do it." Law has enough of answering pointless questions. He just wanted them to do as what he ordered them.

"I told you that I'm going to train you guys in Observation Haki. So this is how we will do it." Law didn't have the time to personally train and nurture each of their abilities, so he figured that he'll train all three of them at the same time.

"We are going to train like this until each and every one of you awaken Observation Haki." Inosuke is bewildered. It's that easy?!

"What about Armament Haki then?" Tanjiro asked.

"We'll do that later. Do as I say." Law commanded them. It's important to him if they could master Observation Haki first. 

"Will this work?" Zenitsu doubted that it will work.

"If I had to rely on you fucks, it's impossible. But with me around, I think you guys could do it." In order to awaken Haki, one must be pushed to their limits in order to achieve said Haki. Law also holding a wooden sword in his hand.

"You guys will be working as a teammate in this training. Try and work together to parry and block my attacks." from the start, all of them will be separated a meter away and put in random location close to each other.

"Huh, that's easy!" Inosuke boasted about how it is easy.

"...blindfolded." Inosuke take back what he just said. 

"Don't worry. I will hold back a little bit." Law crossed his fingers behind his back. 

"Put your blindfolds on. I'll guide you guys to where you should be standing." The trio put their blindfolds on and do what as Law says.

"I got a bad feeling about this!" Zenitsu squealed, while pointing his wooden sword everywhere.

"Now, try and detect my attacks and block it." That was Law's last word before the training finally starts. Blindfolded, they must work block and parry Law's attacks. Law planned to include all three of them at the same time is to test their teamwork at the same time.

Tanjiro is on guard. He can't predict where or who will be attacked first. He utilized his hearing to locate where Law might be and block his strike.

*Tap*

*Tap*

*Tap*

Tanjiro could hear footsteps coming towards him. He put on his guard. I could hear it! From the right! Tanjiro put on blocking stance to his right.