Reborn on Campus, Bai Yueguang Turned Out to Be a Yandere

[Sweet Daily Campus + Single Female Protagonist + Relaxed Leisure] When he opened his eyes, Jiang Nian'an turned into a gangster boy. You mean, the number one academic in the school is my childhood sweetheart? Does she have hidden yandere attributes? You want me to call you sister? Returning to high school, will Jiang Nian'an still have any regrets...