Tanjiro is the main protagonist of the anime: Kimetsu no Yaiba (also known as Demon Slayer).
He has a scar on his head, and he's also part of the Demon Slayer Corps, and his job is to slay demons.
His journey starts off with a demon killing and eating his family, and only his sister Nezuko surviving. Nezuko turns into a demon, however, and attacks Tanjiro. After a bit, however, she stops attacking and decides not to eat him, for whatever reason.
Tanjiro is a very kind person and takes care of his sister well.
Yo you see that awesome Water Breathing and Total Concentration move that Tanjiro did? So badass!
by TheAngryNerd September 30, 2019
Tanjiro is perfect in every way possible, he is just wonderful and perfect
Person 1: Tanjiro is so cool

Person 2: I know right he is the best
by ppchild July 10, 2021
best boi, cute, hot, very nice, Tanjiro>>>>>>>>>>>>>>>>anyone/anything else
marry me pls Tanjiro 💍”
by Tanjiro’s wife November 24, 2021
a wonderful human who does anything to help others and has almost died many times protecting the ones he loves and anyone who may be in danger. in fact no one can define him perfectly 'cause not a single word exists that can describe the length he will go to to protect people and cure his younger sister.
"that's enough zenitsu"
by Demonslayer_Simp June 9, 2022
Dah best bby boi in the anime, because Zenitsu is a fucking pedo and oh my god inosuke without the boar mask is hot fufufufufufufuufufufu
"Hey did you know Tanjiro is best boi?"
"lol nope it's Zenitsu"
"Go fucking die"
by YukiSuki December 7, 2019
"Alright Gonpachiro Kamaboko, I'm gonna bring you down!" - Inosuke Hashibira to Tanjiro after mansion fight
by BlazeInferno25 July 31, 2022
A fellow boy from the anime Demon Slayer with an inhumanly kind and big heart. His family was murdered by demons, and everybody died except Nezuko, his sister who turns into a demon.
He joins the Demon Slayer Corps to find a way to turn his sister back into a human. Tanjiro is (without a doubt) the kindest out of the 3.7 billion people on this planet. If you know this dude and like him, your life is worth the galaxy💖.
P.S his head is harder than the hardest stone on Earth and is enough to take down a whole army with one head butt.
Inosuke: "Oi Kamaboko Gonpachiro (he thinks Tanjiro's name is Kamaboko Gonpachiro)! Challenge me to a head butt battle!"

Kamado Tanjiro: "Are you sure? Your injuries aren't healed yet... you should rest some more until you do some fighting!"
by Br0ken_Insid3 July 1, 2021