These are the Top 10 strongest characters in Season 1!

A Ketoshinki is what the Samurai call your strongest transformation or technique.

10. Maraka Da (Ketoshinki: None)

Maraka Da was a member of the Saisei gang and was also known as a 'Shugoki'. Although being very slow, Maraka Da was a very strong and fierce member of the Saisei gang. He used his demonic presence to scare if his foes and uses his monstrous strength to finish them off. He goes up against Tagosaku in the movie named: Bushido - The Saisei Gang! and while winning during the first half, Tagosaku uses his intellect to finish Maraka.

(Power Level: 118)

9. Kibo Haruyo (Ketoshinki: None)

Haruyo was a restaurant owner and the most famous sorcerer in Heimura. She was very skilled at her magic and is the reason why Kensei posses such. She barely has any fights but the most memorable one is when she fought Shinosuna. It was a good battle but yet Haruyo was killed by Shinosuna.

(Power Level: 120)

8. Matsuze Akina (Ketoshinki: Wind Manipulation)

Akina is the Daimyō of the Matsuze Clan and was only revealed in the show once as a courageous Onna Bugeisha. Although she hasn't had any battles in Season 1, she is known for her great strength by not just her clan members but also her rivals so from their we can judge how strong she is.

(Power Level: 133)

7. Iwan Ingen (Ketoshinki: Wood Manipulation)

Same for Akina, Ingen is the Daimyō of the Iwan Clan in Iwanuri. He has only had one battle in Season 1 against Tagosaku as he thought that the Heiwa Clan were enemies to the Iwan Clan. Although he may have lost he has shown a bit of strength and how much of a threat he can become.

(Power Level: 148)

6. Midori Saburo (Ketoshinki: Incomplete Crescent Kagami Mark)

Even though he was a Aonisaibushi, Saburo is one of the strongest characters in Season 1, and being from the Midori Clan, it is no suprise. In the final battle against Shinosuna, Saburo betrays him and unlocks a new trait for his Kagami Mark making him stronger than most characters in Season 1. Also being temporarily trained by Shinosuna, he possesses some Shinobi and assassination skills.

(Power Level: 188.2)

5. Moyasu Tagosaku (Ketoshinki: Shapeshifting, Monkey)

Tagosaku was portrayed to be the strongest Seieibushi in Heimura and Kensei's mentor. He is a very cheerful and laid back kind of guy but still possessing great power puting him much higher than the other characters in Season 1. He would later become skilled enough to become one of the strongest characters in Season 2 and 3. Tagosaku is also able to use the Moyasu Kettomītsu, Shapeshifting.

(Power Level: 205)

4. Heiwa Nashikaze (Ketoshinki: Wood Manipulation)

Nashikaze is the Shōgun during Season 1 and was also very strong. He was able to stand his own against the likes of Maraka Da (in the movie) and Shinosuna. Even though he lost against Shinosuna, he was able to weaken him severely. He was killed by a fierce tornado from Saburo at the end of the season. He is known for his excellent mastery with his Wood Manipulation.

(Power Level: 210.5)

3. Shinosuna (Ketoshinki: Shinobi Cloak + Sanity Full)

The fact that just a mere ninja was able to severely injure the 3rd Shōgun of Japan must mean that Shinosuna is a very strong character in Bushido killing the most famous sorcerer and awakening Kensei's inner power. He was able destroy multiple of clans and even create his own named the Suna Clan. He was able to take on Kensei, Saburo, Tagosaku, Momoko and Keiko (who were at 100% that time) even though he broke through the curse that Nashikaze sealed.

(Power Level: 375)

2. Midori Takara (Ketoshinki: Kagami Mark + Extreme Sound Manipulation)

Takara already stated that she fought Shinosuna and beat him and also was more powerful than Shinosuna. She appeared has the main antagonist to the movie Bushido - The Saisei Gang! We also saw how she quickly beat her younger brother Saburo with even the help of Tagosaku and yet still lost the battle. She also states that she is no where near the power of a Kamishikara but this wasn't proven as she also beat Kensei and Ize together (This was before Kensei unlocked his Full Kamishikara Seizan Release). She was so smart and strong she didn't need to use her Crescent.

(Power Level: 426)

1. Kibo Kensei (Ketoshinki: Full Kamishikara Seizan Released)

Kensei was confirmed to be the strongest character in Season 1 but this is only when he releases his Full Kamishikara Seizan and use the Crossfire Slashes technique. He was able to kill Shinosuna with ease as he used the Crossfire Slashes technique.

(Power Level: 500)