A Sister Who Loves Her Younger Sister Too Much

I have always lived with my younger sister constantly on my mind. Since childhood, I loved my sister, and every time I saw her grow—as a baby, in kindergarten, in elementary school, in high school—I was captivated by her cuteness. However, one day, when her older sister received a confession from her younger sister saying, "I got a boyfriend!" the sister was overwhelmed with despair. Other: I am posting the following heartwarming yuri long story on Syosetu (a novel posting site) so please feel free to check it out if you'd like. 【A High School Girl Daily Yuri Story of Licking Each Other's Wounds】When we hold hands, I can hear your voice.