t-claw's pov

" Grab your siblings and follow me. " Udokoraki said and led us back to the mountain path. Half way running up the mountain I turned to see tanjiro's shocked face and could sense his shock about udokoraki's stamina and silent footsteps. I held myself back from laughing at tanjiro's face. Soon we arrived what I believe is udokoraki's home, I was panting slightly while tanjiro struggled to catch his breath. " Please tell me the test is over. " tanjiro pleaded. Udokoraki only chuckled in response. I know that kind of chuckle, it was one when something was only getting started. Which made me curious and a little nervous. " We are only just getting started, place your siblings in the house and follow me. " he said making tanjiro shocked at his statement. I walked in the home to see it is neat and tidy as well as some masks some which are fox head shaped. I walked to a room where tanjiro was placing nezuko down. I placed my brother's basket down and patted it, I peeked in it to see he is sleeping. I smiled at his sleeping form and covered the basket back up and walked out to find tanjiro and udokoraki waiting for me. We then walked further up the mountain. Soon we got to an area which the red masked man stopped. He turned to us, " You both must make it down this mountain before sunrise." he stated and then disappeared into the nothingness. Not wanting to waste time I ran down the mountain, I didn't anticipate how thin the air was and how much it was going to screw up my senses and I paid for it. "t-claw look out!!" I heard tanjiro yell behind me I turned to see a big ass log, I tried to move but it was too late and it rammed into me sending me flying.  "AHH!!!" I yelled out and was thrown into a tree. "o-ow... " I spoke in pain. "are you alright?!" tanjiro exclaimed, concern and worry evident in his tone. "y-yeah I will b-be fine. " I reassured with a smile. He returned it and helped me up. We continued our way down the mountain accidentally triggering a few more traps along the way. We soon opened the door to udokoraki's house, he turned to see us heavily breathing and a bit beat up. "we made it. " we said unison. He let out a "hmm" with a approving nod. We ate and went to sleep in the rooms he gave us.

Udokoraki's pov

It seems the fluffy one knows somewhat of what he is doing, and I saw his draconic breather's mark. It caught me buy surprise because of how difficult it can be almost no one bothers to learn the breathing style enough to have the mark or keep the mark. I wonder how much he could help defeat muzan. I sent my crow to inform my master of the last known draconic breather and that I would give him more details in a letter. The crow flew off and I turned and went to bed, so I can wake the two in the morning for training.

t-claw's pov

I woke up quite early and went outside and sat down to take in some fresh air. "your up quite early." I heard a familiar voice call out behind me. I turned to see the owner of said house standing behind me. He then sat down next to me, " Would it be alright to ask you a few questions?" he asked. I sense only curiosity in his intentions. I nodded allowing him to ask. " Who performed the draconic breather's ritual on you to reveal the mark?" he asked, I immediately felt sad in this moment as it was my mother who performed it. Despite me wearing a mask he was able to tell I was upset and didn't want to say. " I apologize, you don't have to answer the question if it makes you sad." he apologized. I nodded to show that I forgave him.  " How skilled are you with water breathing?" he asked trying a more comfortable subject. "... Not a pro and still needs work, I only mastered form one..... " I quietly replied and he nodded in return. " Would you like to learn the rest of the forms?" he questioned.  I thought about it " I do need to get better and it might be able to help with my draconic breathing. "  I decided that I would. I nodded a yes, although I couldn't see his face behind his mask I could tell he was happy, and I smiled but he couldn't see it due to my mask. He then excused himself to go wake tanjiro and make breakfast.  I sat outside for a few minutes and decided to go back inside where tanjiro sat and udokoraki just finished making breakfast. We ate in silence and went out side and began the long, tiresome training.  We trained by getting hit in the stomach, getting flipped, kicked into the water with a waterfall, standing under said waterfall, practice swinging the sword, running down the mountain, and so on. While doing all of that I learned five more draconic techniques. Sixth form dragon's dance, combines unknowing fire, flowing dance third form water breathing and constant flux. A flame shapes a dragon shape around the sword and uses steps like flowing dance but will leave burns, bites and scratches on opponents. And the sword is swung the same like flowing dance. Seventh form dragon's thrust, combines drop ripple thrust seventh form water breathing, and draconic breathing. It creates a large draconic force that will increase the users speed and strength as well as nearby allies and powers the thrust of the sword when user gos in for the attack. The user has to swing forward. Eighth form draconic quake, combines underworld eruption eighth form flame breathing, upper smash third form stone breathing and waterfall basin eighth form water breathing. Creates harsh ground shaking as well as flames, water and large hunks of rocks coming together and attacking opponents, however can be dangerous to the user as it can take a lot of energy out of the user or if not focused and injure or worse to the user.sword can be swung in any direction  Ninth form dragon's lullaby, combines flowing dance, blessed rain after the drought fifth form water breathing. A more gentle attack, as the user gets the ending shot it won't hurt the opponent and a calming song plays in the ear of the opponent calming them. And tenth form dragon's fall, combines waterfall basin, constant flux, unknowing fire and heat lightning fifth form thunder breathing. While the user is up high or jumping down before the release a dragon shapes itself around the sword and while jumping down the dragon like figure gets to a medium size max and when the hit lands it burns as well as leaves bites and scratches on the target, if not used properly or user is unfocused it will severely damage the user. Since the consequences are severe no one bothers to learn it or drop out of training for it. That's why those who use draconic breathing are feared if they completely master it or know a few forms. Today udokoraki brought me and tanjiro to an area with two huge boulders that are 8ft apart with a rope around the middle.  " In order for me to allow you to go to final selection this is the final test.... You must slit the boulder in half. I have nothing more to teach either of you. " and with that he disappeared into the nothingness. We tried all day but no progress. We tried for a long time. This morning I woke up extremely early and went to the boulder.  When I arrived I thought about what I was doing and tried something different. I relaxed and focused my mind on one thing. " Draconic breathing..... First form... DRAGON SLASH!!" I had my eyes closed and thrusted my sword and body forward and swung my sword and it was.... Silent.... I opened my eyes and to my surprise the boulder was shattered. I heard a gasp and turned to see tanjiro.

Tanjiro's pov

" draconic breathing..... First form..DRAGON SLASH!!" I heard t-claw shout and the boulder shattered. " he.... He did it! And I didn't know his voice was that deep. "  I gasped causing him to jolt up and turn around. "heh... Sorry. " I apologized to the short fluffy male in front of me. He noded accepting my apology.  " w-well you should go tell udokoraki that you passed. " I said smiling while scratching the back of my neck. He noded and when he passed by me he told me that he believes in me and that a I need to believe in myself more than I already do. I noded and began attempting to cut the boulder. When I was going to give up a boy with a white fox mask scolded me and began to fight me, this went on for a year when sabito fought me Makomo gave me tips and tricks until one day sabito had a real sword.  "go!" makomo shouted starting the fight. Just as quick as it began I was a milasecond faster and was able to slice sabito's mask, revealing his face. I had won. He gave me a sad but proud smile. " Make sure you pass the final selection for me. Ok?" he asked and makomo and him disappeared I had closed my eyes when they did. I reopened them to see that instead of sabito's mask it was the boulder. I jolted when I heard clapping behind me, I turned to see my fox masked friend. Udokoraki seemingly came out of nowhere and congratulated me. " Good job to you both, now all that's left is for you to enter and pass the final selection. " that's right, final selection is the only thing standing in our way now.