Kimetsu no Yaiba: Why did Rengoku’s father stop being a hashira?


The story of Shinjuro Rengoku is interesting and tragic to say the least.

Kyojuro Rengoku was the first Hashira we saw in action in Demon Slayer: Kimetsu no Yaiba (not taking Tomioka into account), he earned a place in the hearts of his fans, thanks to his appearance in the Mugen Train Arc, where he fought against Akaza, the third upper demon moon and one of the strongest demons under Muzan Kibutsuji. Nevertheless, the tragic results of that combat bring to light a curious fact: his father was much more powerful than he.

Although Kyojuro followed in the footsteps of his father, Shinjuro Rengoku, he never learned anything from him. In fact, both his breathing technique and his fighting ability were the result of autonomous learning, reading the books in the family library, and personal practice. But why did his father Shinjuro Rengoku, being so powerful, abandon him to his fate as a demon hunter?

The main answer to this question from Kimetsu no Yaiba (Demon Slayer) is: The family. Shinjuro is one of the strongest demon slayers in history. Due to his dominant breathing technique, he was considered an exceptional swordsman in his days as Hashira.

However, one fated day after the death of his beloved wife, Ruka Rengoku, Shinjuro parted ways with the world he knew, abandoning the vow he made as a demon slayer. He cultivated both hatred and agony and started drinking while doing his duties, even though he was the person who swore to protect others, his wife and family, from the demons and was determined enough to give. his life in the process if he got to that point.

Shinjuro ceased to be a Hashira, and before he retired, he shattered the Generational Record of the Flame Hashira, which had been passed down from generation to generation in the Rengoku family. Shinjuro’s heart of stone blinded him to the point that even the death of his eldest son, Kyojuro, did not bother him.. She even began to scold his son and his abilities against Tanjiro, and they both got angry and fought each other, culminating in Kimetsu no Yaiba’s (Demon Slayer) characteristic headbutt, to make him see reason.

The truth behind Shinjuro Rengoku’s face in Kimetsu no Yaiba (Demon Slayer)

Deep down, somewhere, Shinjuro really cares about his two sons and wanted to take them away from the dangerous world of demon hunters. As seen in the first episode of the Red Light District arc of Kimetsu no Yaiba (Demon Slayer), after receiving Kyojuro’s last words, he burst into tears. Although Shinjuro was never kind to her son, he really had high hopes for him, for his future as a warrior and hashira of the flame.

shinjuro rengoku kimetsu no yaiba demon slayer hashira

Some time later, Shinjuro apologized to Tanjiro through a letter and explained all the events he saw, the decisions he made, and the consequences of his actions. He showed a great sense of pride for Kyojuro, who trained constantly and learned Flame Breathing just by reading 3 volumes of the family library. Shinjuro also brought in an exceptional candidate in Obanai Iguro, who became a mainstay in the Demon Slayer Corps.

As the Serpent Demon was about to kill Obanai, Shinjuro came to the rescue and defeated the demon with maximum efficiency. Shinjuro even tried to reunite Obanai with his cousin. However, after seeing the familiar’s hostile attitude, Shinjuro decided to take Obanai with him to make him a demon hunter.

Related topics: demon slayer


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