Professor Yanase Berlitz

Prior to Ruby & Sapphire arc

Yanase Berlitz first appears in a flashback in It All Ends Now V. She was one of the scientists involved with the attempt to create an artificial Green Orb to control Rayquaza in order to prevent any future disasters that would come about if Kyogre and Groudon were awakened. When a Salamence broke into the lab and started rampaging, Rayquaza was freed from its cage, and the laboratory was destroyed. Yanase and the other injured scientists were found by Norman, who had fought Rayquaza shortly after it escaped.

Emerald arc

In The Final Battle IV, Yanase decided to abandon the project and threw the last remaining Green Orb core into a lake. Emerald would later come across the core and wore it as an accessory on his head.

Omega Ruby & Alpha Sapphire arc

Yanase appeared as a cameo in PS611 when Norman told Ruby that the operation to capture and study Rayquaza was funded by the House of Berlitz.

Diamond & Pearl arc

Yanase officially debuts in this chapter. She is first seen out on sea, talking to her assistant about the traditions of her family. As they talk, Yanase gets a call from Platinum over the Pokégear. Yanase tells Platinum that she found information on where her original bodyguards, Paka and Uji, were sent after being defeated by Team Galactic. Yanase tells Platinum that they may have been sent to the Distortion World.

Platinum arc

Later, Yanase meets with Bebe and Daisy Oak at the hospital in the Sinnoh Pokémon Association headquarters. She and Daisy reveal that Platinum's Pokémon have developed Pokérus. At the end of the eighth chapter, Yanase appears before Professor Rowan and Mr. Berlitz at Sunyshore City. She tells the two that she and Platinum will be happy to help them in their research.

Sun, Moon, Ultra Sun & Ultra Moon arc

Yanase appeared in Faba's flashback in Tyrant!! The Fiendish Man!.

Yanase is a member of the house of Berlitz where she is the wife of Mr. Berlitz and the mother of Platinum. Additionally, she is a scientist working for the Pokémon Association. As an heir to the house of Berlitz, Yanase at one point in her life traveled to Mt. Coronet in order to create a special accessory.