summation
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Zenitsu was trained by former Thunder Hashira and evolved from a coward to a powerful devil slayer.
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Despite the difficulties of fear, the hidden talent of Zenitsu can blossom and show powerful power during sleep.
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Zenitsu's thunder breathing and mastering new skills are one of his most powerful demon slayers in his generation.
Zenitsu, trained by former Thunder hashira -Jigoro Kuwajima, was sentenced to greatness, and as a devil slayer, his growth is quite obvious in the series. Despite being the most brilliant person in Tanjiro's friendship group, Zenitsu is initially hidden in the hidden talent and becomes more clear as it becomes a series, and how powerful he is.
In this series, he is a demon slayer, but he is introduced as a cowardly and weak person who is constantly afraid of being killed. But later in the series, the power of Zentisu was awake when I fell asleep, and gradually I gradually learned how to understand how to grasp my abilities while I was awake.

relevant
Devil Slayer: All thunder breathing technology explained
One of the most powerful thunder breathing is one of all breathing techniques of the devil slayer. All types of attacks in this technology are:
Zenitsu vs, Kaigaku- New Dawn Breathing
Did the only two students in Jigoro prefer great?
Jigoro Kuwajima was a retired Thunder Hashira, and took Zenitsu and Kaigaku under his wings and trained to become a potential Thunder Hashira. Even though he was over 60 years old, he was dedicated to the cause and hoped to deliver thunder breathing technology to the next -generation demon slayers. Jigoro was strict in his teachings, but he believed in all the possibility of success of the two students. Kaigaku has obviously achieved high results, but Zenitsu was more anxious and very low. Jigoro still believed that Zenitsu had the potential to be more work. KAIGAKU was natural for thunder, and was able to master six thunder breathing, apart from the first form. But Zenitsu polished his skills in the first form and created some variations of this form.
If you can do one thing, make it perfectly. Polish to the limit as much as possible!
A few years later, Jigoro learned that Kaigaku had chosen to be a devil, which made Jigoro's heart hurting, thinking that he failed as a teacher. Jigoro commits Seppuku, a Japanese conscious suicide that can't live with him. Kaigaku decided to be a devil because he was obsessed with being stronger. He decided to be the devil of death and betrayed the Devil Slayer Corps. Kaigaku ranked as a devil, but Zenitsu passed the class to become a powerful devil slayer.
Zenitsu-From coward to powerful devil slayer
It took time, but Zenitsu finally wakes up his abilities.
In addition to thunder breathing, Zenitus has tremendous instincts and muscle memories. Since thunder breathing is grown, the first form allowed the perfect attack to move at a crazy level and precision. Zenitsu was also one of the characters in the series and was one of his most powerful devil slayers, proving that he had not woke up the devil slayer mark but still had much more power than the average devil slayer. Zenitsu, a producer of production, proves that he is an important character, not just a character in the development of the series.
It was huge to be Zenitsu's Hashira. After polishing the first form of thunder breathing, he was able to create a completely new form with thunder breathing, which could only be Hashira -level characters such as Giyu and Muichiro. Thanks to the ability to make this form, he was able to successfully regress Kaigaku in the last battle. This means that Zenitsu is the only person who can truly carry out the legacy of Jigoro. At the end of the series, Zenitsu showed equivalent levels as Hashira. Zenitsu officially did not officially become Thunder Breathing Hashira, but was faithful to Jigoro's teachings and overcome his fear. In essence, Zenitsu is technically a true inheritance of psychiatric and lifelong thunder, and has become one of the most powerful and underprivileged characters in the DEMON Slayer series.

Devil Slayer: Kimetsu No YAIBA
- Release date
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April 6, 2019