Ryusei Satou

Ryusei Satou is the former Tokyo Manji Gang First Division Vice-Captain (壱番隊 副隊長) and the former leader of Yotsuya Kaidan. He is the deuteragonist of the Tokyo Revengers: Letter from Keisuke Baji spin-off series.

Appearance
Ryusei has tan skin and has dyed, messy pink hair with a few black strands. On his right ear he sports a ring earring with a tassel. He has droopy dark eyes with long eyelashes on the bottom and a snake tattoo on the left side of his neck. Ryusei is usually seen wearing a faux fur coat over a black t-shirt, and occasionally the standard school uniform. He is considered handsome by his female classmates and himself.

When he was younger, Ryusei had black hair and was styled close to a bowl cut.

Personality
Ryusei has a very laid-back attitude. He is very calm, even in the face of very difficult situations. He is quite confident of himself, always calling himself handsome and that along with his friendly personality makes him very popular among his peers. He is very playful and likes to tease. He is also very cunning which makes it easy for him to mess around with people, he often messes with people for fun. For example, he offered Chifuyu help to get recognition from Baji by giving him a new hairstyle, but he styled Chifuyu's hair in a hilariously overdramatic and large pompadour. Chiufyu finds Ryusei's playful personality very annoying. Despite Ryusei's knack for messing with people, he seems to actually be a very caring guy as he was one of the few people who visited a wounded First Division member, Cho, every day, leaving him flowers and gifts. He saved Chifuyu from getting beaten by an opposing gang member even though Chifuyu openly showed his dislike towards him. He also greatly respects Baji and provides him with utmost protection when necessary. His truly kind personality was even recognized by Peke J, Chifuyu's cat. He doesn't mind being viewed as a narcissist if it means he can help his gang.

Underneath his relaxed and spirited personality seems to lie much turmoil. He seems to have a very violent side as seen when he almost killed the leader of the gang Killer Bee which may have something to do with his past relationship with Yotsuya Kaidan. It is revealed he left Yotsuya Kaiden because of how it grew into a violent and bloodthirsty gang and joined the Tokyo Manji gang because he felt, unlike his own gang, that they actually cared about each other and did not want to harm innocent people.

Ryusei deeply cares for Kojiro Hishi since they both grew up together. While he was in charge of Yotsuya Kaiden, he began to notice Kojiro's violent tendencies and was worried he might kill someone someday. He rejoined Yotsuya and pretended to betray the First Division because he wanted to save Kojiro from the darkness within him. With the help of Chifuyu, he was able to realize that Kojiro was a lost cause and left his former gang for good.

Authority
He is the first division vice captain of Toman, so he has control and command over the division. Also as the former leader of Yotsuya Kaiden, he had command over the entire gang.

Fighting Prowess
He is an extremely strong fighter who can take down entire gangs all by himself like Yagyō Dōji. He seems to be an expert on boxing and knows various useful and important fighting techniques which gives him a great advantage compared to others. He can also easily distract his opponents which makes it even easier for him to defeat them. He was able to defeat Killer Bee, a very big and powerful gang with only one person, Matsuno Chifuyu, by his side, all the while protecting Baji.

His strength is such that he has the respect of Baji who openly acknowledges his strength.

Intelligence and Charm
He is a very intelligent individual who can read and understand people, including his opponents very well. He also seems to know a lot about boxing and fighting techniques. He is incredibly charming which makes it easy for him to deceive people, he has everyone at his school thinking he is a sweet, harmless, ordinary guy when he truly is a dangerous delinquent. He is very cunning which helps him not only mess around with others but also trick and distract his opponents which makes it even easier for him to defeat them. These traits are what is most fearsome about him and what gives him an edge over others.

Appearances
{{Appearances|Chapters|

Toman Introduction Arc

 * Chapter 2 (Letter from Keisuke Baji) - The heel
 * Chapter 3 (Letter from Keisuke Baji) - The black cat
 * Chapter 4 (Letter from Keisuke Baji) - Hairspray

Yotsuya Kaidan Conflict Arc

 * Chapter 5 (Letter from Keisuke Baji) - A sudden change
 * Chapter 6 (Letter from Keisuke Baji) - I know you know
 * Chapter 7 (Letter from Keisuke Baji) - There was a time
 * Chapter 8 (Letter from Keisuke Baji) - The imitation
 * Chapter 10 (Letter from Keisuke Baji) - The closet
 * Chapter 11 (Letter from Keisuke Baji) - Batting practice
 * Chapter 12 (Letter from Keisuke Baji) - Juvenile
 * Chapter 13 (Letter from Keisuke Baji) - Disappear
 * Chapter 14 (Letter from Keisuke Baji) - Assembly (flashback)
 * Chapter 15 (Letter from Keisuke Baji) - Nowhere
 * Chapter 16 (Letter from Keisuke Baji) - Courtesy
 * Chapter 17 (Letter from Keisuke Baji) - Your back
 * Chapter 18 (Letter from Keisuke Baji) - From the beginning
 * Chapter 19 (Letter from Keisuke Baji) - Nevertheless
 * Chapter 20 (Letter from Keisuke Baji) - Never Gonna Be Alone
 * Chapter 21 (Letter from Keisuke Baji) - All of me

Current Arc
}}
 * Chapter 22 (Letter from Keisuke Baji) - Summer ghost
 * Chapter 23 (Letter from Keisuke Baji) - Dude
 * Chapter 24 (Letter from Keisuke Baji) - Red Scar
 * Chapter 25 (Letter from Keisuke Baji) - Trinity
 * Chapter 26 (Letter from Keisuke Baji) - Doggy
 * Chapter 27 (Letter from Keisuke Baji) - Raid

Etymology

 * The name Ryusei means "dragon" (龍) (ryu) and "star, time" (星) (sei).


 * Ryusei's surname Sato means "helpful wisteria" (佐藤).
 * As separate kanji, they mean "help, aid, assist, subordinate" (佐) (sa) and "wisteria" (藤) (to).

Trivia

 * Ryusei has a fear of dogs.