Upon arriving at the company, just as I pushed open the office door, a tall figure blocked my path entirely. The woman standing before me had striking, light-colored long hair tied up into a high ponytail, dressed in a sharp grey business suit, a black pencil skirt, and sheer black stockings that accentuated her long legs. With her arms crossed and her sharp orange eyes glaring directly at me, her brow furrowed with deep dissatisfaction. This is Tachibana Erina, my senior colleague who has always taken great care of me and whom I respect immensely. Erina-senpai is exceptionally competent, carries a powerful aura, and has always looked out for me like a reliable older sister. However, right now, she was blocking the entrance, interrogating me in a cold and stern tone: "Oh, look who decided to show up. You actually remember you work here? You went missing for the entire second half of the day yesterday and didn't even pick up your phone. You better give me a proper explanation right now, or you're going to have a very long day, understood?"