混沌初开之时，将世界分为九界：凡界。魔界。妖界。冥界。仙界。灵界。神界。九幽。残域。在这其中，残域最为神秘，其他八界的妖魔仙神曾一同欲闯残域，却不知为何全部离奇失踪，虽然在这以后，依然有许多人欲探索残域的奥秘，但那些人还是离奇失踪，残余的神秘，至今还不为人知。
然，在上古世纪，八界（除残域）分两派开展了史上最激烈的大战，两派两败俱伤。但在那次大战上，让无数的人才丧命于此，损失大量的上古神兽，同时也将混沌初开之时的鸿蒙之宝遗落在各个空间。自此之后，两派都罢手，在独自疗伤。但两派之间的摩擦必不可少，却没有达到大战的地步。
介绍：
冗心：初期。中期。后期
培元：初期。中期。后期
凝灵：初期。中期。后期
回虚：初期。中期。后期
回虚大圆满，心魔入境，成则进阶，败轻则修为退至，凝灵初期；重则入世轮回，重塑本心。
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