My crush on a busty, ordinary girl and my unexpected love triangle with a casual sex partner. These two completely opposite characters drive me mad, making me obsessed with this innocent, busty harem. (Hazuki Nozomi, Amatsuki Anzu, DASS-642)

College student David enjoys a lively drinking party with his friends Yuto, the outgoing and sexy Anne, and the innocent and earnest Noah. However, as the alcohol takes effect, David witnesses Yuto, Anne, and Noah engaging in a bold and intimate interaction, leaving him shocked. David, who secretly loves Noah, is troubled by his own immaturity and feelings of powerlessness, spending a sullen night. Just then, Anne sweetly whispers, "You're still a virgin... So, why don't you 'try it' with me?" Confused, David cannot resist his desire and ultimately has his first intimate encounter with Anne, indulging in the pleasure. As their interactions increase, Anne also develops special feelings for David. However, David's obsession with Noah cannot be eliminated, and Yuto's relationships become complicated, creating an uncontrollable whirlpool of emotions between the three. — What will be the ending for the intertwined youth and desires of these college students, their love, and their happy conclusion?