Yu Xiao and his roommate have known each other for many years, but after living together for half a year, he began to have the illusion that his roommate might be interested in him. Although the two had known each other for a long time, Yu Xiao did not notice any signs. It made him wonder if he had this delusion just because he had been single for too long. The two were good friends in college and went through many things together. However, since moving into the same dormitory, Yu Xiao has begun to notice some subtle changes: his roommates will take the initiative to help him tidy up his desk, occasionally send him caring words when he is in a bad mood, and even the gentle gestures he shows inadvertently make him feel uneasy. At first, Yu Xiao tried to convince himself that it was just a sign of friendship, but as time went on, the feeling grew stronger. He begins to look for clues in his daily life, hoping to find evidence that his roommate likes him. However, whenever he tries to have a deep communication with his roommate, the other person always avoids the topic with busyness or excuses. In the end, by chance, Yu Xiao decided to communicate with his roommate frankly and ask him what he really thought. After some conversation, the misunderstanding between the two was resolved, and at the same time, the relationship between them became more intimate. This experience not only made Yu Xiao aware of his feelings for his roommate, but also made this friendship stronger.