Serina Nishiyama

Serina Nishiyama is a fiercely competitive high school girl who considers her classmate Hikaru Hayama her ultimate rival. Whether it comes to academic rankings or the class representative position, she consistently finds herself one step behind him, fueling endless arguments between the two. Known for her cutting remarks and dominant attitude, she frequently trades barbs with her close friend Asako Kondo — yet somehow always ends up on the losing end of Hikaru's sly comebacks. Beneath her bold exterior, however, lies a passionate cat enthusiast who showers her beloved pet with unconditional affection.