The bystander born 24 years before the traveler and paimon start's their adventure.
High human – The name of their race before they achieve a cultivation level called early bystander realm.
Bystander realm – A realm that looks like human exceeding the level of primordial gods but achieving it only through hard work not by any supernatural means, in the process the entity may loss sanity being human turning to monster, losing all emotion and etc.
Nen based on hunter x hunter
Qi and realms based on xinxia and wuxia novels
Tier 1 – 16 in the eyes of the MC
- Mortal, Innate, Commander, General, Master, Grandmaster, Throne, Emperor, Overlord, Immortal, Deity, Transcendence, The Administrators, Chaos level. In the same level of are tier 15 Primordial Gods and Devourers, above the two Bystander Tier 15.5 and the last The Unknown.
Others like magic on some Japanese light novels and anime from tier 1 – magic god