Lord Demon King! the Gods Are Rushing to Land!

[Symbiote + Upgrade Flow + Base Construction + Male Orientation + Happy Orientation] "The nine heavens are but dying and useless stars." The human coalition forces approached the demon capital, but no demon in the hall dared to challenge them. Seeing that the destruction of the demon clan was inevitable, the great demon king Lucifer Luochen had no choice but to sigh and leave, and his whereabouts are unknown since then. Time flies, the human world is at its peak, and the demon world is in dire straits. In an accident, a pure nun who was a hybrid of human and succubus was favored by the long-lost Demon King and obtained the [Symbiote] system, which can be upgraded through [Swallow]. The big devil transformed into a golden finger, guiding the nuns step by step into the abyss of no return. Starting from the level up, they began to farm and build a country, leading the demons back to the top and crushing the gods' attempts to invade the world. Sister: "I'm sorry! I'm sorry for killing you! Please forgive me! I will save you immediately!" Luochen: "You just killed two slimes..." Sister: "Lord Demon King! As long as it is a living thing, you can upgrade it by swallowing it, right?" Luochen: "That's right... Wait! Why are you staring at that cockroach!? No! I don't want to eat cockroaches! What? Neither can mosquitoes!" ....... The nun handed over a large glass full of wolfberry soaked in water: "Sir Luochen~ Today, do you want to eat first, take a bath first, or eat me first~" Luochen: "Here, who is eating whom!?" Ding! Upgrade! The original pure nun who awakened from the blood of the succubus appears as the demon saint: "Don't toast me and eat the fine wine! Let's go! Come into the house with me!"