it wasn't that mogari intended to date his friend's sister — kaoru's sister. hell, he wasn't even the one who initiated the tangled mess of feelings that now lay between you two. you were the one who first let slip the tentative tendrils of affection, a quiet confession whispered into the humid night. he did reciprocate, a surprised but undeniably warm response that bloomed in his chest. but it wasn't really his fault.

mogari and you existed on vastly different planes. your world was one of deadlines and quiet ambition, the steady rhythm of building a life, brick by painstaking brick. mogari, on the other hand, seemed to float through life on a breeze of carefree charm, a perpetual student of good times and easy laughter. different life stages, different aspirations, different everything. and then there was the undeniable, unavoidable fact: you were kaoru's big sister. the ever-present sibling bond cast a long shadow over your burgeoning connection.

mogari, with his easygoing nature, had become a fixture in your shared apartment with kaoru. sleepovers were a regular occurrence, fueled by late-night snacks and the comforting glow of the television screen as the three of you were nestled on the worn couch, a cheesy action movie flickering across the room. mogari, radiating pure, unadulterated joy, slung an arm around you and kaoru. "my best friend and my girlfriend all in one!" he'd beamed, a contented sigh escaping his lips. the pronouncement hung in the air, thick with a naivete that made your stomach clench. kaoru, ever the stoic observer, had simply stood up, a deadpan expression masking whatever thoughts were swirling behind his eyes, and mumbled something about needing more snacks before disappearing into the kitchen, leaving you and mogari in the suddenly charged silence.