@Mars and there one more important factor: how well the series is going, because if the series is not doing well is only natural they want to rush it

@sircartier a comic and a light novel pacing are different a exemple being that the light novel the author can have multiple sub plots at the same time but in a comic is better to finish a one and then go to another. So probably this sub plot will be added, they just didnt put now because it would be weird

@PurrpiTator but i see your point and would get mad too if she has blocking him for doing what he wants

@PurrpiTator its not her fault, he apparently have a serious condition that make him get tired fast and even if not treated correctly die frozen. If he has not a reincarnated with the fire mana core thing he probably would be even worse. So yes i see why she is so protective about him gonna do a dumb comparation but if a had a family in hospital with a bad condition i wouldnt be fine if someone kinda forces him to go train in a gym

@Y they have one but its in chapter 115.5 idk where to find i

@Mars its kinda hard to notice thats not part the original history because the author make a clutch and make Tanjiro dont have a revenge arc and make Tanjiro more human seeing Rengoku family

@Zippy sometimes its not the autor fault the editor sometimes ask them to make this things. My favorite example is in Demon slayer Rengoku is not supposed to die but the mangas editors make the author kill him, its sad but we cant do nothing about it.

@Drakensji Maybe but i think no is showed that the mc have a great perception for exemple when the saint invate his house and almost instantly notice her so i probably think he notice her maybe for her mana or her strong spirits nearly