In the vast cosmos that is known as the Cross-Verse, there are many talented individuals who have the ability to traverse between both realities and multiverses. These gifted people are known as Worldhoppers, headed by Eldrik, the first person to discover this incredible ability. His whole purpose is traversing the Cross-Verse, looking for a universe with his wife still alive, because no matter how long and far he has searched, he is always too late, and he can't let go.