Izumi, the sales ace with excellent grades, good looks and great communication skills, has someone he absolutely cannot lose to. His name is Sendo, the most unlikable man who took the top spot from Izumi.After a fateful app encounter, Izumi and Sendo fell hard for each other—now they’re next-door neighbors, savoring the honeymoon phase from opposite sides of a shared wall!But when Izumi is tasked with mentoring an ambitious new hire, the newcomer’s rapid rise triggers his competitive streak—and his anxiety. As Izumi pushes himself harder and harder to reclaim the #1 spot, he starts to buckle under the pressure… just as his enigmatic older brother, Hayato, unexpectedly returns to Japan.So why isn’t Izumi happy to see him? And how did he wind up working himself to the point of collapse? Determined to help, Sendo seeks out Hayato in hopes of understanding the "baggage" Izumi has been carrying. Whatever the weight of his burden, Izumi doesn’t have to bear it alone—if he’ll let Sendo in.NOTE: This book contains mature content and is intended for readers 18 years of age and over.