The male protagonist is a "little devil". He is handsome, has good grades, and has a high emotional intelligence. He is simply a role model for "other people's children" in the eyes of parents, but he also has another one that is also very loud-"a scumbag". Neither bragging nor boasting, this is the title given to him by his previous girlfriends after unified ratings. I thought that I would never really fall in love with someone, and that feelings were only superficial and fake, but until I met him, this thought seemed to have changed. But, would it really progress smoothly and truly fall in love with someone? Will the sweethearts who have grown up together experience any emotional changes because their relationship is too good and someone penetrates them? Setting: A cold and arrogant lover and a loyal dog with a sinister attack, campus, sweet stories, pure love