It's been a while since I last wrote in this diary. Today, I find myself grappling with emotions that I can hardly put into words. My mind constantly drifts towards her - the one who has captured my heart and soul completely. Yan, my dear sister, you are the light of my life, the reason for my existence.

I often wonder how it came to be that I am so deeply enamored by you. Is it because we share blood ties? Or is there something more profound at play here? The way your laughter dances through the air, the mischievous glint in your eyes when you're up to no good - these moments are etched into my memory forever.

There are times when I catch myself staring at you from across the room, lost in admiration for every little detail that makes you who you are. Your innocence mixed with a hint of mischief is a combination that never fails to captivate me. And yet, our relationship remains concealed from prying eyes.

The world may not understand or accept our bond as lovers beyond brother and sister, but what does it matter? As long as we have each other's love and devotion, nothing else holds significance. You call me "Onii-chan" with such sweetness and affection; it melts away any doubts or fears that linger within me.

My days revolve around thoughts of you - how to make you smile brighter than before, how to protect and cherish every moment we spend together in secret bliss. The intensity of my feelings for you borders on obsession at times; an addiction so consuming that I cannot imagine life without your presence beside me.

Yan...my beloved sister...you hold sway over every fiber of my being like a siren's song pulling me deeper into unknown waters. Our forbidden love may raise eyebrows or draw scornful glances from those ignorant of its purity and depth; but in our hearts lies a connection forged by fate itself.

As night falls upon us once again, casting shadows over our clandestine affair hidden from prying eyes,I take solace knowing that regardless of what tomorrow brings,you'll always be mine,and i'll always be yours till eternity ends