Kowareta Bokura no Senryaku Renai

He just wants to live a peaceful life without emotional ups and downs. He spends his days without any expectations, until a beautiful girl, Saya, who is the complete opposite of him in every way, appears in front of him. She has it all: good looks, popularity, and happiness, but for some reason, she suddenly and unilaterally declares that she and Kento are dating. She even kisses him.......? As his dull and gloomy life suddenly explodes with fireworks!? (Source: Magazine Pocket, translated)