I was a small fish when I reincarnated but I heard I can become a dragon so Ill do my best

A guy who has been reincarnated in another world remembers almost nothing about his past life Contrary to his expectations he becomes a small fish that wakes up in the middle of the riverA voice in his head calling himself The Voice of Heaven explains the path of his evolution at the end of which the hero of the story will be able to become a dragon gaining experience points and developing The guy having caught fire with this idea begins hunting for the sake of raising the level Who knew that magic levels and even special skills existed in this world The hero begins his journey from the weakest to the strongest starting with a small fish