Another World Without a Directory

Are all other worlds really that beautiful? You may have read many novels and anime about different worlds. But most of them were reincarnated with super powerful systems, or acquired something very powerful, and then swept across other worlds. But what is the real different world like? I think, maybe without the halo of the protagonist, it is really impossible to live. This time, let's look at something different. Let's witness how three completely different protagonists survive in these three cruel different worlds. What they have to do is to use magic (jubudago) and spells (makogisi) to survive in this world and become stronger. There is no other way but to rely on themselves. [Traditional fictional world, multiple protagonists, no protagonist aura, anti-routine, online IQ, multiple endings]