Mako used to be a man of few words, until he became friends with Bouya. Because of this, Mako's inner chatterbox came out and the two became fast friends, even if they ended up fighting all the time.
Mako has even accompanied Bouya more than once when the latter had to confront a whole gang of enemies by himself. This even led to a one-on-one versus Housen's Hideyuki Bitou, which was a fight that Mako won .
Regardless of Hiromi's leadership, Mako is considered the strongest of the Ebi Trio,this makes him the Harumichi Family's second strongest fighter after only Bouya himself.
It was stated by Pon that Mako likes spicy foods .
He claimed that he enjoys sitting alone quietly at the very back of his class, enjoying the sunlight and falling asleep while thinking about love .
Mako, along with Pon and Hiromi, would become well know around the district as the Ebizuka Trio and were the strongest at Ebizuka. Many of the middle schoolers wanted to join the Ebizuka Trio but they did not take any followers.
Mako, along with Pon and Hiromi, would fight other middle schoolers from outside Ebizuka. They took out Sahara and his guys from Seta Mid and Odajima and his guys from 3rd Mid. Unknown to the Ebizuka Trio, no one fights with Odajima since he has an older brother from Suzuran that backs him. When they find out about Odajima, Hiromistated that it didn't matter what happens from now on. At this time, Hiromiconsidered not going to high school.
When Hiromi, Pon and Gunji arrived to help, Kirishima tells Odajima's brother that Suzuran can kiss his ass and that they aren't anything special because they are two or three years older than them. Before engaging them into a fight, Hiromi's speech caught the attention of Genjirou Katsuragi, who was walking by. When Odajima's brother and the Suzuran students saw him walking by, they began to panic in fear. Katsuragi stopped and asked what's going on and looked at Hiromi, Pon, Mako and Gunji. After looking at them, Katsuragi turns to Odajima's brother and says to him ''Odajima, what the fuck do you think you are doing fighting middle schoolers?!'' Odajima and the rest of the Suzuran students apologize and run in fear.
It was the first time they met Suzuran's infamous, Genjirou Katsuragi.
At the end of their first year, Kirishima, Pon and Mako encounter Bandou Hideto.
Mako, together with Pon, confronted Bouya for attacking Hiromi. Mako won the coin toss to fight Bouya , but ended up losing to him . After this, the Trio realized that they needed Bouya's strength if they wanted to challenge Hideto Bandou, who at the time was trying to gain control of Suzuran.
The four men teamed-up and continued to hang out with each other even after Bandou's defeat.
The Ebizuka Trio helped form the Harumichi Family to fight against T.F.O.A., and later they were surrounded by Anzai Mitsuhiko and several underling but the three of them managed to defeated them all .
During this era, he was claimed to be the top 5 strongest person in Suzuran excluding Bouya.
After recovering he fought one-on-one against Hideyuki again and easily won .
Mako is also the only member of the Harumichi Family with a girlfriend, which draws ire from the other members of the Family.
After Suzuran Edit
Mako started working as a carpenter at his girlfriend's father's company and didn't graduated .
Bouya ranked Mako as the fifth strongest fighter he ever faced.
- Mako vs. Genji - Lost 
- Mako vs. Bouya - Lost 
- Mako vs. Senda Naoki, several underlings - Lost 
- Mako, Hiromi, Pon vs. Rindaman - Loss 
- Mako vs. Ryuushin - Lost 
- Mako, Hiromi, Pon vs. several Anzai Mitsuhiko's underlings - Won 
- Mako vs. Anzai Mitsuhiko - Won 
- Mako vs. Hideyuki Bitou, Matsuda, several underlings - Lost 
- Mako vs. Hideyuki Bitou - Won