In his first life, Akira Nakamura was an ordinary high schooler who was average in both looks and studies. He was quite lazy of a man. He wanted to live a peaceful life without stading out too much. Unfortunately for him, he was transmigrated to a world of Swords and Magic with his whole class. But he was killed soon after for being weak by his classmates. But instead of dying he was reincarnated again in the same world but not as a human but as an extinct species of a sea creature. Find out more about how Akihiko uses his system to evolve into higher lifeforms and takes his revenge along with gaining several beauties in his harem and finally ascends into godhood by reading out the whole novel.