Collar and Iron Chains

[Otherworld + Multiple Races + Cat-Eared Heroine + No System + Planets + Japanese Invaders + Wild Imagination + A Series of Quirky Comedic Elements]

Ever since the Demon Realm was protected by the gods within the Divine Realm, the Demon Prince, a planet in his own right, has slowly grown inside the body of the Divine Prince. Later, he joins forces with the various races to resist the invasion of the Buddha Realm's Supreme Buddha and an army of Japanese clans...