Yakuza 3 Remastered

For this achievement, you must meet each of the 5 masters once. The masters you have to meet are:

Kamiyama: You'll meet him at some point during Chapter 3 where you'll meet him and he'll show you his weapon store. After you've seen his weapon store go to his store south of the Ryudo Family office called Kamiyama Works Ryukyu which will be on the 2nd floor. Once inside talk to him and he'll talk to you about modding and other features he can do.

Yonashiro: Early in chapter 4 after Izumi goes after the dog you'll be stopped by Yonashiro when trying to go to the monorail station from Morning Glory. He'll tell you he can train you in weapons. After he tells you this go to the beach and head left and he'll be on top of the rock. Talk to him and he'll teach you Nunchaku.

Mack (Revelations): Late in chapter 4 you'll meet a photographer who's looking for the perfect shot. The 1st revelation is mandatory for the story so it cannot be missed. He'll ask you to photograph something at the corner. What you're looking for is an old woman on a scooter so hit the right stick and look for that then hit A then hit the QTE that shows up. After the cutscene is over you'll have 3 choices of what Kiryu thinks he learned from that. The choice you need to choose is "Leap, flip, and stick the landing. Magnificent". After that Mack will text you a description of where you can find other revelations.

Minamida and the IF7: From chapter 5 onwards whenever you're in Kamurocho you can go see Minamida. You'll find him and his machine in the small lot next to the tiny alley below the Champions District. Talk to him and to use his machine he'll ask you to pay money to play a combat simulation of a boss you've already beaten and what chapter you're on. The 1st one you can play as early as chapter 5 is Lethal Warrior and you'll fight Tamashiro. You have all your regular combat moves except for heat moves cause your heat level is your health bar during these fights. The 1st time you beat the boss you get a new heat move and every time after you'll get the same gear or material item.

Komaki: To unlock Komaki first you must complete the sub-story return to the dragon palace which takes place during chapter 5 and starts on the top part of the Hotel District where all you have to do is beat up homeless hunters where it started then once more in front of the building southeast of where the sub-story started then wait some time til you get a text saying the building is ready. After you get that text go to Stardust on Tenkaichi street and one of his pupils will give you a letter saying to meet Komaki on the dojo level of the Dragon Palace. I don't know if simply talking to him counts or not but to be safe I'll list what he wants you to do and where to find them. Once you head back to the Dragon Palace Komaki will want you to regain some of your knowledge so he sends you to go fight 3 of his former pupils to regain some of your knowledge about his moves. The first is found at Sushi Gin. He will use the Komaki Knockback against you, meaning attempts at combos may result in a blocked counter. The second is found at Smile Burger. He will use the Komaki Tiger Drop against you, meaning attacks could be countered with a fierce low punch. The third is found on Shichifuku St. just southeast of the Batting Center right below the MEB. This pupil will be wearing a white poncho and will have a green arrow above his head. He will use the Komaki Parry against you, which is similar to Tiger Drop, only it causes less damage and leaves you stunned. After beating all 3 of his former pupils return to the Dragon Palace and you can fight one last pupil to be done with the first part of Komaki's training. Depending on how much you leveled up your skills is if you can do his second part or not. Hopefully just doing this counts towards the achievement.

Mack (Running Training): At the beginning of chapter 9 Mack most likely would've sent you a text saying to meet him at Park Boulevard next to Purgatory's bathroom entrance. Once you talk to him he'll bring you to the empty lot right before you enter Purgatory and talk to you about how to upgrade your running and tackling abilities. Simply do his first training and this should count towards your achievement.