When I Comforted My Sickly Stepsister, She Couldn’t Live Without Me

“I’m all you need right, Nii-san?” My parents remarried and I got a step-sister two years younger than me.However, my step-sister became a shut-in after being bullied in middle school. In order to get my shut-in step-sister to open up to me, I, as her older brother, made a lot of attempts and as a result, I was able to get her to let me into her room……. “―I, have become unable to live without Nii-san♡” As a result of comforting and continuing to act as her big brother,Before I knew it, I found myself facing advances from my affectionate and sometimes aggressive step sister every day. ※ It may take some time for the yandere tendencies to fully develop. Enjoy the anticipation while readin...