An attractive college student named Kei Tachibana finds himself in an uncommon complication. His gorgeous and older girlfriend, Chisa, displays a significant affinity towards other men, specifically 2D "Oshi Characters." As Kei-kun navigates his way through these persistent "Oshi," what obstacles will he confront in the future? This is a romantic comedy that delves into the relationship between a devoted young man and a diligent otaku woman!