Katsumi Amako

Katsumi Amako is a member of the Amako Bushi and the leader's son. He is a member of the Uesugi Alliance as well, and was assigned to the same platoon as Musashi.

Awaji Island Recapture Operation Arc
At Harima port, the Amano Bushi are disappointed they are on the side, but know they are a minor band compared to other Bushi bands in the Uesugi Alliance. Katsumi states they are there to slay the Kishin and motivates the Amano Bushi.

Katsumi with other Bushi is send to the barracks, there Katsumi wish to see who is the strongest and who will lead this squad. They face each other with Akihiro Shimazu, but Musashi decides to join the fight and it becomes a three-way fight. Akihiro gets serious and easily defeats Musashi and Katsumi. Katsumi wish to continue fighting for his retainers, and Akihiro is fine, but Musashi stops them. Musashi accepts Akihiro as leader and so does Katsumi. However, Akihiro doesn't believe that Musashi is sincere and thinks he is acting of self-interest and attempts to secure better position. Akihiro also believes that Katsumi is also doing it of self-interest as he wanted to fight for his retainers, but quit so easily, like he was waiting for Musashi to step in and have an excuse to give up. As they don't fit to be leaders, Akihiro states he is the new leader and everyone should obey him.

After visiting the strategic meeting with the other leaders, Akihiro tells his unit that they will arrive tomorrow at Awaji island and and while they hold the oni, the Shimazu will slay them. Musashi is disappointed that he plans to take all credit, but Akihiro states that's how things work. Katsumi thanks him for trying to stand up, but tells him to give up as that's how things work. The next day, they are attacked by oni. As Akihiro kills an oni, he sees that Katsumi and his clan are helping hold the oni and congratulates him for not running away. Katsumi states he will fulfil his duty, as he is a Bushi.

Feeling that Musashi may want to run away, Katsumi finds him and encourages him. He explains that he was humiliated in similar situation, but Musashi kept on speaking for them. Katsumi reveals that he is the heir of the Amako bushi, who lived on Awaji, but they lost is as the oni overrun them. He wanted to be commander, so that he leads his men into retaking the island. Musashi decides to stay and starts training with Katsumi the next day. As Katasumi teaches him about Blade Energy, Musashi tries it with Michiru, but they form a black crystal and then Musashi gets arrested for being a spy. The Shimazu unit is then ordered to stay behind until Musashi and Michiru are cleared and only then they can join the battle.

Musashi's group proceeds with the Shimazu defeating every oni and telling the rest to stay behind as they are weak. Katsumi states there is a different in power, but they are not weak and Katsumi's group then defeats an oni. Katsumi states he has been following orders, but as Akihiro isn't ordering them anything right now, he can't stay and do nothing. As they unite with other Bushi, who are after the Kishin, Akihiro tells them that they won't be focusing the enemy bushi, but the Kishin and the rest should stay behind. Katsumi explains to Musashi that Akihiro has his eyes on glory as anyone who breaks a horn of a Kishin will leave a mark on history. Katsumi is disappointed, but Shimazu are fine with that as they came to make names and note that Musashi should stay for sure out of the fight as he recently even learned about blade energy. Musashi agrees, but states he will help as much as he can as he came to do what he can do and reveals he learned all of the Shimazu names from Kuroko. He realized that he can't do things himself and seeing the Shimazu work together, he found them amazing and wanting to be like them. They all then face Yataro, who states he is one with the Kishin and transforms. The Shimazu and Musashi manage to defeat him, but Yataro turns into a white serpent and heads towards Orochi. They chase him, but as the Shimazu can't deal with it alone, Akihiro orders them to line up and link. After that Akihiro attempts to kill it, but gets eaten by Orochi. Katsumi, Musashi and the Shimazu then enter the Orochi and save Akihiro and together they manage to link and defeat the serpent.

The Bushi notice that the Kitetsu isn't gathering at their swords. As Tatsuomi is saved, Musashi decides to go look for Michiru and the Bushi go with him. They go inside the mountain where Orochi was and find powered up Yataro who made Michiru into a blade and with powers similar to the Goddess. Natsuki doesn't take him seriously, as they defeated him earlier, but Yataro points his blade at Natsuki and almost kills him. As they start fighting, Yataro obliterates the Bushi and cuts down Harushisa, Tokisame and Katsumi, among others.

Using the Goddess power, Musashi manage to defeat Yataro. Katsumi manages to survive thanks to Tatsuomi's power. As he recovers, he thanks Musashi for helping him liberate his territory. Later, Katsumi is taken by Shiro and brought to the Obsidian Eight.

Equipment
Kitetsuki sword

Abilities
He possesses a Blue Color of the Soul.

Etymology

 * The name Katsumi means "victory" (勝) (katsu) and "snake" (巳) (mi).
 * Katsumi's surname Amako means "nun" (尼) (ama) and "child" (子) (ko).