Masato

In the town of Lohta, a festival is thrown praising "Aaron the Wave Leader Hero" who, according to the legend passed down through the town's generations, stopped a war centuries ago by using the power of "the Tree of the World's Origin." Satoshi and Pikachu participate in a battle to decide this year's hero and after their victory, they are chosen as the "Wave Leader Hero." A…

Satoshi, Haruka, Takeshi, and Masato come upon the festival of the Wishing Star of Seven Nights. During their enjoyment, the legendary pokemon, Jirachi, decends from the heavens and befriends Masato. Jirachi, with the power to grant any wish, is sought after by many people wanting to claim its power. One man seeks to use its legendary power to revive an ancient pokemon known…

Constantly moving throughout the ocean the Temple of the Sea exists invisible to human eyes. It is here that the Sea Crown exists. Phantom the Pirate has captured the egg of a Manaphy, the only Pokémon able to locate the temple. However, his plans are ruined when Jack Walker, a Pokémon Ranger, interferes. Along the way, Ash Ketchum and his friends manage to get caught up in…

Satoshi and his friends travel to LaRousse, where they meet a boy named Tooi who is afraid of Pokemon due to an incident that happened four years earlier. Meanwhile, Deoxys, a Pokemon from space, has reappeared, putting a barrier around the city and kidnapping people. Rayquaza, a Pokemon that lives in the atmosphere, comes to fight it. Source: ANN

The mini-saga follows Satoshi venturing into an archipelago of islands called the Decolora Islands with Iris and Dent. Source: Bulbapedia

When two doors are discovered in an ancient ruin, the gateways to Shinkai, the Realm of the Shinzoku (Gods) and Makai, the Realm of the Mazoku (Demons) are irreversibly opened. The races of human, shinzoku, and mazoku come together in the mortal world and nothing will ever be the same. One day, two new families move next door to a boy named Tsuchimi Rin who had previously…