Nephilim Falls is a location of Danny Lionheart's home. Usually, demons would rise up from Hell and attack innocent people, and that Danny would slay the demons with the help from others; this is why Danny can't stand his ex-father, Alfred Abaddon Lionheart, since the demon panda is the one who tried to rip out his ex-wife's heart. Nephilim Falls is also a home where angels and demons migrate; there is no capital for it. Though Danny Lionheart and Razia Aegislan live here, the city is mostly populated by Sonic-styled OCs that his creator, Daniel, makes (some of them, being a mix of a Sonic-styled character, and an anthropomorphic character). Some of Danny's online chat buddies are aware that Danny Lionheart is part-angel, part-demon (due to being born from her mother first, before his sister, Serena).

Nephilim Falls is also often tormented by demonic threats. Prince Vulgros, Danny's evil step-brother, has assaulted it once. Initially, it was because Heaven and Hell are connected to Nephilim Falls, but in some times, Danny would do anything in his power to defend his town. Sometimes, when Danny takes a vacation with someone, he leaves some people in charge. The population of Sonic-styled people often suggest that Nephilim Falls is a peaceful place, mostly because Danny and his family (Gill included), lives there. Nephilim Falls has been run for many years by a Mayor as he tries his best to protect this town from harm. Specific towns include a blacksmith shop, a church, a stripper club, a five-star restaurant, etc. Though several non-angels and non-demons (such as Danny's online chat buddies) live here as well. It is also revealed that Danny can get from Nephilim Falls, to another place, by driving his car. It is unknown if Nephilim Falls is completely different from various other towns and cities, or merely a portion of Planet Mobius. It appears that a new insignia for Nephilim Falls is a hybrid of a pentagram, and a Holy Cross, with both a pair of angel wings, and a pair of demon wings (due to MLP:FiM-styled Ponies migrating here as well).

Residents

Lionhearts
Venus Lionheart
Serena Lionheart
Sofia Lazuli (lives with Serena Lionheart)
Serena Lionheart
Gill the Fish-Man

Aegislans
Lea Aegislan
Razia Aegislan

Residents
Nicole the Hedgehog
Melody the Wolfox
Ashley the Red Panda
Kimberly the Lioness
Jessica the Antelope
Zack the Wolfox
Christopher Koala
John the Goat
Fang the Dragon
Chang the Monkey
Big Joe the Fennec Fox (often seen in the Nephilim Falls Stipper Club)
Sifreya
Helfreya

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Places

Nephilim Falls Stripper Club
Nephilim Falls Church
Nephilim Falls Blacksmith Shop
Nephilim Falls Eat-'Em-Up Restaurant
Nephilim Falls Academy School
Nephilim Falls Museum

Lionhearts' House
* Room of Geekery and Adulthood (Danny)
* No-Boys Zone (Serena and Sofia)
* Venus' Room
* Bathroom (3)
* Attic
* Basement
* Kitchen
* Dining Room
* Living Room

Aegislans' House
* Razia's Room
* Lea's Room
* Bathroom (2)
* Basement
* Kitchen
* Living Room
* Dining Room