What Kind of Girl Comes from the Sky!

Male Protagonist: The otaku Guo Ze has an average appearance that you wouldn't find in the crowd. He is 177cm tall, weighs 70kg, and has a docile personality. He is an out-and-out two-dimensional + otaku (historical record is that he never stepped out of the house for three years until the heroine arrived) + galgame player (experience in hundreds of games), who graduated from college One day he chose to be brave and confess his feelings to the girl he liked. Unexpectedly, his bravery led to a lifetime of withdrawal. He could not forget that everyone laughed at him for being a little transparent. He did not choose to change his mind or face his fear. He chose to hide in a shared house to escape. Little did he know that the little girl he brought home when he was 13 years old changed his future life. Female protagonist: Shirai Mei, whose Chinese name is Bai Xiaoya, is a little girl from Fuso who was separated from her family at the airport when she was a child. She was taken home by the kind-hearted Guo Ze and spent a happy summer vacation with Guo Ze. Later, she successfully found her parents with the help of Guo Ze's parents. It wasn't until Guo Ze's third year in the shared house that a girl knocked on the door...