Ah! The Brooding Boss Is Actually My Big Brother!

Two male leads + horror game + mutually each other's first and only love + maximum sweetness and doting + older top + 1v1 + size difference + happy ending (Check the author's note in Chapter 1 for content warnings.) The bottom is a total sweetheart who loves to act cute! A spoiled, frail, beautiful bottom who says exactly what he thinks x a gloomy, fatherly, obsessive top Jiang Ciyu was raised by Ji Huaiqing. When Ji Huaiqing was twelve, he found Jiang Ciyu barely breathing outside a hospital. He raised him into a beautiful young man, spoiling him until he became a pampered young master, precious from head to toe. Then one day, Ji Huaiqing disappeared, and Jiang Ciyu was taken into a horror world. The System told him he had to clear the instances to find Ji Huaiqing. And so Jiang Ciyu embarked on the long journey to find his brother. But... the instances were so strange... The castle's butler always came into his room late at night. The train attendant was always pressing up against him from behind. The ghost on the phone wanted his clothes. The dog at his feet licked his ankles until they turned red. But where was his brother? His brother had become the butler. His brother had turned into the train attendant. His brother had become Jiang Ciyu's dog...