To Save My Life, I Conquered the Entire Demon King's Castle.

The demons live in the abyss. They are a ruthless race that has no emotions and indulges in killing and aggression all day long. Its cubs know how to suppress their own kind when they are born. The process of growing up is inseparable from fighting. Only those who are strong enough can survive. When Chen west was first reincarnated into the abyss, looking at the desolate land with only a few grass roots, he once thought that he might not survive a day. When he was picked up by a demon with indifference written all over his body and a feeling of "what the hell" disgust, he felt that he might not survive more than three days. After being picked up and thrown into a luxurious palace without any attention, he felt that he might be able to live for ten days and a half if he worked hard in the kitchen to sell cute food. However, what I didn't expect was that one month had passed, one year had passed, and n years had passed. Not only was he fine, but he also successfully became the favorite of the Demon King's palace. Not only did he conquer the Demon King's father, he also conquered the strange silent great priest, the narcissistic magician, the head guard of Shirogiri Kuro's mother, the mindless and unhappy Demon General, and many other parents, and even became the next Demon King's heir! Not only was his life saved, but he also reached the peak of demonic life! Intention: to be added