if Tanjiro died and Giyu found Nezuko and brought him to the Master and began the Trial, meanwhile the Mist Hashira found interest in this demon and later on falls in love with her.
MANGA SPOILERS
Let's make this clear, The fanarts/photos I add are...
Senjuro POV: as i tried to find Nezuko-san, Shinyu followed me, i couldnt find her anywhere! And i didn't even know what she looked like.. but i did see a girl fighting a demon..
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Senjuro POV: blood kept splashing i avoided the blood since i already discovered it's gonna explode.. wait.. she must be Nezuko! I got a bit closer and said
Senjuro: Hey I'm sorry to bother you! Are you Nezuko? Are you travelling with a boy named Muichiro?
Nezuko: *Nods*
Senjuro POV: i avoided the slashes of Shinyu.. and told her the plan.. the explosion of blood was to loud, so Shinyu and the other demon couldnt hear us, that was good!
Senjuro: Good luck Nezuko-san! Please be safe *runs to the forest*
Shinyu: Dammit.. SHINMIKO! YOU BETTER KILL HER!
Shinmiko: OF COURSE I WILL!

Shinyu POV: as i followed the weird looking flame slayer, he disappeared
Shinyu POV: I got slashed right in the back and i fell at the ground hardly and he stepped on my back and apolgized, who does that..
Senjuro: I'm sorry i have to end your life now..
Shinyu: I CAN'T BE DEFEATED THAT EASILY! *scratches his legs*
Senjuro POV: This demon is so flexible he's arms reach to my legs, my legs are paralyzed..
Shinyu: WEAK! *punches his stomach*
Senjuro POV: I spitted out blood and got knocked back and hit the a tree the demon then got closer
Senjuro: 🔥 flame breathing 1st form unknowing fire🔥*slashes his arms*
Senjuro POV: I can now move my feet again and i ran again and apparently ran over Muichiro and Nezuko.. wait i thought.. we should split up?
*minutes earlier*
Muichiro: 🌫 mist breathing 2nd form eight-layered mist!🌫
Shinju POV: He cutted my legs so i can slow down.. interesting... i grew them back but we accidently came across Shinyu and a pink demon.. girl..
Muichiro POV: Thank God.. Nezuko's still alive.. But blood was scattering everywhere and started exploding I avoided them then started fully attacking the demon who kept following me
Muichiro: 🌫Mist breathing 3rd form scattering mist splash🌫
Shinju: *gets slashed in arms + exposed by the explosions* DAMMIT I CAN'T SEE!
Shinmiko: *beings punched by Nezuko nonstop + exposed by explosion*
Muichiro POV: I saw Senjuro running towards us and i was ready to slash the demon's head. 🌫Mist breathing 4th form shifting flow slash🌫
Shinju: SH*T MY HEAD
Muichiro POV: I also helpes Nezuko and slashes off the demon she was punching*
Senjuro: 🔥Flame breathing 2nd form rising scrorching sun!🔥
Shinyu POV: SH*T I WAS TO SLOWTO DODGE! THERES NO ONE LEFT WHO SURIVED- that.. means.. we.. lost..
Narrator: The 3 demons then started to fade away, Senjuro then checked on Muichiro.
Senjuro: Hey! Are you alright? You did great!
Muichiro: I'm okay.. are you? And thanks..
Senjuro: I'm fine, is the demon travelling with us okay?
Muichiro: Oh right...
*he checks on Nezuko*
Muichiro: Hey are you alright? You did amazing back there.. I'm glad your alive
Muichiro POV: Nezuko then jumped and hugged me tight, i hugged her back of course.. her hug was warm.. i patted her head.. Senjuro joined in..
Senjuro: I'm glad were still a trio, Oh right, I'm Senjuro! Senjuro Rengoku, the little brother of Rengoku Kyojuro! I use flame breathing🔥 i hope to follow my brother's steps as a demon slayer..
Muichiro POV: That was a good goal actually.. Nezuko then patted our heads.. and that was the end of our mission..
