This is a story about a journey of a young adventurer, Acma Heart who travels across the world. Born in an age of space exploration and advanced science and technology, he was always dreaming to travel across dimensions and meet with their citizens. Luckily, his dream has finally come true. Due to a failed experiment that was supposed to open a portal to another dimension, the barrier between the dimensions shattered and a process of merging between worlds of different dimensions, started. An experiment that was supposed to be a beginning of an illustrious era, was marked as an era of human beings annihilation. Now, human beings have to fight for their own survival against mythical creatures,devils, demons, undeads and numerous other unknown creatures or they will go extinct. But to our young adventurer, this events are a great opportunity to fulfil his childhood dream. Watch him forge his way to become a new legend.