The Hashiras would likely show concern. Some, like Shinobu, would immediately start looking into possible medical solutions. Giyuu might be more reserved in his worry but would still keep a close eye on Tanjiro. The other demon slayers would also be affected. They look up to Tanjiro, so his sickness would lower the morale of the group. They would try to support each other while waiting for Tanjiro to recover.
Tanjiro might use his sense of smell to detect hidden threats. Since his sense of smell is super - enhanced, he could sniff out any demons or traps in the way of saving Rengoku. For example, if there are demons disguised as allies, Tanjiro would be able to tell by their scent.
Modern and contemporary are relative concepts that are usually used to describe the current state of an era or society.
In modern society, the word "modern" is usually used to describe the end of an era or country. It is usually at the end of the 19th century or the beginning of the 20th century. For example, 1848 is the starting point of modern China. 1911 is the beginning of modern Chinese history.
The term "contemporary" is usually used to describe a certain era or society in the present or future. Its definition may vary due to cultural, historical, political, and other factors. Generally speaking, the term 'contemporary' may refer to certain characteristics or events that the current era or society is experiencing, such as technology, culture, economy, politics, etc.
Therefore, it was not the current era but the modern era. Although the modern era may have ended, the current era is still ongoing.
Yes, in some fanfictions, Tanjiro is depicted as the reincarnation of Yoriichi. This concept adds an interesting layer to the story as Yoriichi was an extremely powerful and legendary figure in the original lore. The idea allows for new storylines where Tanjiro might inherit some of Yoriichi's skills or have a deeper connection to the past events related to Yoriichi.
Tanjiro's fate in the manga is that he ultimately passed away. This event was a significant part of the story's development and had a profound impact on the other characters and the overall plot.