Mix (stylized in all caps) is a Japanese baseball-themed manga series written and illustrated by Mitsuru Adachi. It is a sequel to Touch. It has been serialized in Shogakukan's manga magazine Monthly Shōnen Sunday since May 2012. As of November 2025, the chapters have been compiled in 25 volumes. A 24-episode anime television series adaptation by OLM was broadcast from April to September 2019. A second season was broadcast from April 2023 to September 2023.
Plot Thirty years after Tatsuya and Kazuya Uesugi brought Meisei High School to their only appearance and championship at the National High School Baseball Championship, a pair of highly talented stepbrothers, Touma and Souichirou Tachibana, bring the possibility of a return to the Kōshien, as they learn of the Meisei High sports heritage of their fathers.
Characters Main characters
When Touma was six years old, his widowed father, Eisuke Tachibana, married the widow Mayumi Sawai, who also brought her two children, Souichirou and Otomi, into the family. Touma has a wry sense of humor but is friendly and has an outgoing personality that naturally draws people in. Coincidentally, Touma and Souichirou share the same birthday, Touma only being born ten minutes later than his step-brother. Throughout childhood Touma competed with his new brother to see who would be the destined pitcher of the pair and who would relent and be the catcher for the other. Due to his phenomenal pitching speed and maybe because of a successful round of rock-paper-scissors, Touma became the pitcher. In middle school he was held back from being the ace pitcher while the coach gave preferential treatment to a less talented pitcher. Once that situation was resolved, he became the ace in his final year of middle school and later named ace in his first year of High School. Touma and Otomi are bonded in a 'special' way and Otomi is Touma's first fan. Touma is able to do his best when there's Otomi, even if he hates it when she calls him "Tou-chan".
Touma's older brother. He is an athletic and intelligent boy, especially gifted with strategic thinking, perfect for his position as catcher on the baseball team. Whenever Souichirou, an overly protective big brother, realizes that their little sister Otomi may be alone at home or otherwise, he will insist that Touma drop whatever task is at hand in order to accompany Otomi instead. He is seemingly competitive with Touma but it is possible that he intentionally forfeited the position of pitcher to Touma when they wagered the position in a game of rock-paper-scissors. Both his stepfather, Eisuke, and his coach, Gorou, (both of whom knew that Souichirou's biological father was an outstanding pitcher himself) express their confusion, on separate occasions, over why he gave up pitching. To his coach he gave a partial response while speaking in third person, "Touma has Souichirou Tachibana when he pitches but he [Souichirou] isn't there when I throw." He also appears to be a ladies'-man, dating many different girls throughout middle school and the early part of high school. After falling in love with Haruka at first sight, he stops dating so many girls but she does not seem inclined to return his affection. He regularly visits the ramen restaurant where she worked part-time just to spend time with her.
A pretty and popular girl who is a talented flutist in the school's brass band. She is only a year younger than her brother and step-brother. She grew up shy, reserved, and especially frightened of strangers after her father died but Touma's companionship and outgoing, confident personality helped her overcome that weakness. She now seems to rely on Touma as much, if not more, than her blood-related brother and will pay extra attention to him, such as making him "special" versions of food. Otomi is Touma's first fan and thinks that Touma shines, when he throws. Touma and Otomi have a 'special' bond and even Souichirou has taken notice of this. When she first met Haruka, Otomi asked her which of her brothers is her type, but is rendered speechless when Haruka responds "Hmmm, are you worried?"
Tachibana family
Touma's father, his marriage to Mayumi is his second. His first wife died when Touma was only three years old. He is rough looking, a bit of a goofball and a complainer, but he is also a hard worker (except when skipping work to go to his sons' baseball games), cheerful, and loyal to friends and family. He was a secondary pitcher at Meisei at the same time as Oyama and Sawai, never able to wear the ace number as a player. Although Sawai did gift him his jersey after he was injured.
The mother of Souichirou and Otomi, her marriage to Eisuke is her second. She was originally married to Keiichi Sawai and never knew of his connection to Eisuke until the second marriage began. She is a beautiful and charming woman but can get upset when her husband and Gorou drink in the middle of the day and disrupt the family's dinner. She has a habit of telling everyone she meets about her family's unique make-up.
An energetic but fat Samoyed, as in Touch and H2. Katsu also had a family dog named Punch but it was, appropriately, a Boxer.
Souichirou and Otomi's deceased father. In his first year of High School at Meisei he was chosen as the team's ace pitcher over Eisuke in his third year. During the final game of the year his hand was permanently damaged and he never pitched again. Although he could not play, he cheerfully stayed with the team for the next two years as a manager. When he married Mayumi he never told her about his playing days. He died late enough that Souichirou has some memory of him smiling when he gave him a baseball glove, but Otomi says she does not really remember him at all.
Touma's mother, she died when Touma was three years old. According to Eisuke, she was the ace pitcher of her softball team, and a national tournament runner-up.
Meisei students and staff
Gorou's pretty daughter. Upon entering Meisei she joined and quickly became a star of the rhythmic gymnastics team but because of a broken arm in her first year and the club being disbanded in her second year she has also been able to be the baseball team's manager. She is a talented scout and may even have a better mind for the game than her father. When Haruka and Touma were both three and Touma's mother died, they met at the funeral and spent the day together, at one point she punched him for being hyper and disrespectful and made him cry. During a break in the baseball schedule she took Touma on a day trip to the spot where they met in hopes that he would remember their time together. He has no memory of it but she fondly remembers their short time spent together and has always wondered how he turned out.
The new coach of the Meisei High School baseball team. He says he turned down other jobs to take the Meisei position but this may have been a bluff to make him look better. He is generally seen as a lazy guy and not all that responsible, but he has a good mind for baseball. He is separated from his wife, an upcoming author, but not divorced. His daughter moved with him when he started his new job. He was the captain of the Meisei team when he was younger and is still close friends with Eisuke, his former teammate.
A quiet but hulking power hitter and third baseman who moved to Tokyo and entered Meisei presumably to continue playing for Gorou, turning down invitations from more prestigious baseball schools to do so, but it is more likely he did it in order to stay close to Haruka. She just considers him a childhood friend though. He looks intimidating but is easily frightened by insects. Although competing with Souichirou for Haruka's affection, he will quietly tag along with him if they meet and cannot see Haruka.
A good student and former star soccer player. Arisa Mita likes him but he starts to have feelings for Otomi while they were both Jr. High Class Representatives. His older brother is the star slugger at Kenjou High but he says the two of them do not get along very well. When he gets to High School he quits soccer and joins the baseball team. He is speedy, a good hitter and can play center field. His brother acknowledges his skill.
She considers Otomi her rival in beauty and popularity and is jealous of her good relationship with her crush, Ryou Akai. She tries to outdo her whenever she can. She eventually secretly befriends Tomohito Akai but insists there's no romantic attraction. She became the manager of the soccer team in middle school, presumably to be close to Ryou, but continues the position in high school despite his departure.
A boastful classmate of Otomi and a talented pitcher himself. He believes he is destined to be the baseball team's ace pitcher because his name means "Summer's Number One", and indeed he was the Middle School's ace once Touma leaves for High School. He is one of many boys who like Otomi.
A right fielder and power hitter with a high strike out rate. He is a talkative friend of Touma and one of many with a crush on Otomi. He usually has the worst academic scores in class.
A first baseman (and catcher) who was the former captain of the Meisei Middle School team and is an old friend of Nikaidou, although their friendship was strained while Nikaidou secretly kept his heart condition from him.
A former member of the Jr. High Baseball team who left after punching Coach Kuroyanagi in the face (for wanting to see Touma pitch). He joined a group of delinquents after that but returned to the team in his second year of High School. He is a stellar defender but not as good of a hitter.
Nikaidou was once the designated ace of Meisei's Middle School baseball team and the son of a rich alumnus who gifts the team equipment and perks. He has some talent but Touma, Souichirou, and the rest of the team resent him for his privileged position despite what they see as a lack of effort, stamina, and being clearly being inferior to Touma. It is revealed that his severe pitch limit and short practice sessions were actually precautions put on him because of a serious heart condition. He was made ace by the coach not due to any bribes but solely as an unsolicited favor to Daisuke's father, a close friend of his. He is forced to leave baseball after a risky life-saving surgery. Believing that he would die from his surgery, he kept it a secret from everyone, thinking those that criticized him would feel extreme guilt once they learned of his death. However, he too comes to appreciate Touma's talent and closely follows the future teams' progress.
A former Meisei Middle School baseball coach. Due largely to Souichirou's game calling, he was able to lead his school's team out of the first tournament block for the first time in 20 years but refused to sit Nikaidou and let Touma pitch in the next block, even though he had obviously lost his ability to pitch effectively. He secretly had a benevolent reason to let him pitch but it led the team to a bad loss after Nikaidou came in late to a tie game and gave up 5 runs to finish it up. Although not forced to, he voluntarily resigned his job for unfairly giving preferential treatment.
Others
The prideful pitcher of the Seinan Junior and High School baseball teams. Like his father before him, he is a very talented pitcher with a particularly good curve ball. He has an obsessive crush on Otomi and goes out of his way to get her attention and ask her out but will also secretly have her picture taken and made into poster sized prints for his room.