Catch Kyogre at the Beginning

Liu Gan never expected that one day he would be able to travel through time, and to a world where Pokémon and humans coexist. Traveling through time was originally something worth celebrating, but the location where Liu Gan traveled was an isolated island with no shit! And the broken system he carried with him only gave him a broken fishing rod! He also told him that this fishing rod had a chance of catching a mythical beast. Fishing for mythical beasts with a fishing rod? Liu Gan expressed disbelief until... Ocean Overlord Kyogre was dragged out of the sea by this fishing rod...