I Have Low Self-Esteem and She Is a Yandere

[Restrained yandere] + [Male protagonist with low self-esteem] + [Single female protagonist] + [Sweet] + [A bit sadomasochistic] + [No AI] + [Everyone has brains] + [Slow pace! "Please sit down here, I'm going to do a venipuncture for you." A medical staff held a needle in his hand and raised his head to look at the boy in front of him. "Yan Xiaochen, right? Relax... Relax..." The medical staff looked at the nervous boy in front of him and said, and then tied the tourniquet forcefully. He subconsciously pulled the cuffs down, trying to cover the cuffs that had become loose after washing. "Okay, I'll try my best." Yan Xiaochen began to exhale deeply and relax, then the needle pierced the blood vessel and the blood began to slowly drain out. "After the extraction is completed, it will take some time for DNA comparison across the country. Please go home and wait for notification." …………………… Yan Xiaochen opened the door curtain of the hospital and walked out. He looked up at the drizzly weather. The humid air filled his nasal cavity. He looked at the endless flow of people in front of the hospital. "Sigh... I don't know if I can find my parents with the DNA this time." He put on the hat of his sweatshirt and walked into the drizzle. He looked at the streets around him. The gray midnight made the surroundings gray. Pedestrians holding umbrellas around him missed him one after another. Yan Xiaochen walked into the gate of the old community with takeout, and the security guard listened to the show on his mobile phone. He glanced at a Maybach suddenly parked among the many cars in the parking space. He didn't know who in this old neighborhood had suddenly become rich... [A newbie is writing a book, so I hope everyone will be more tolerant]