I'm Locked with the School Girl's Pheromones

When Sheng Yang was fourteen years old, he was tricked by a book. After discovering that his world was a book, he watched the book-teller play a good hand of cards to pieces in the past three years without knowing the plot. Not only did he change from a top ten student in the grade to a scumbag with the lowest grades, but also became a school bully who bullied A and bullied B. After the once perfect and handsome bamboo horse A transferred to school and returned to China, he also started a crazy cheating mode in which the drama queen possessed someone, became jealous, and acted like a monster. Suddenly one day, Sheng Yangchu discovered that the cheater who had taken over his body had disappeared. —— Yan Xingchen's life can be called the protagonist's template, the kind that is full of cheats, there is a mine at home, and the toilet is decorated with diamonds. After returning from abroad for three years, he was pushed out of the school's most popular position on the first day. After that, he also grabbed the top academic position in the grade and was the A in the whole school. Everyone wants to have sex with him, and all the O's in the school want to give him a child. The biggest regret in school life is that the once cute and cute sweetheart has become the best and weirdest O' who stalks and fights a lot, and is forced to start the cold male god mode. Suddenly one day, Yan Xingchen discovered that the little bamboo horse from back then seemed to be back. —— Sheng Yangchu: It's time to counterattack. Yan Xingchen: It's time to be really fragrant. —— 1. ABO article, the main text does not give birth to children [probably 2. Milk flavor A + tea flavor O = milk tea CP, must be locked The next ABO trap: "After the pheromones changed to A, I changed to O". If you are interested, you can click on the column to collect ~ Xia Zhihong, the cadet of the Imperial Military Academy, the number one mecha male god for two consecutive years, a well-known game anchor on Star Network, the strongest and most handsome alpha in the hearts of thousands of omegas... As an alpha among alphas, he has a little secret that he is ashamed to share: his pheromones are O-flavored. Therefore, he has never dared to leak pheromones in public, let alone confess to O, his crush for a year. However, after He Chuanhan entered school, he not only took away his throne as the school hunk, but also broke many of his records in one fell swoop. Even Little O, whom he had a crush on, also confessed to He Chuanhan in public. In anger, he bought the pheromone conversion agent sold by the mad genius scientist on the dark web, and then, his pheromone successfully turned into the strongest A smell. However, the sequelae is - he turned into an O. With one injection, he went from an O-flavored A to an A-flavored O. Intention: Study hard and make progress every day