6-gatsu no Love Letter

Momoko, a first-year high school student, has been extremely reserved ever since elementary school. Her best friend Mahiru, who always supported her, passed away just before they were to enter middle school. Then Momoko falls in love for the first time, but struggles to move forward. Suddenly, Mahiru appears before her, dressed in the school uniform she was never able to wear, claiming that she is a ghost. Love and friendship intertwine in this sweet yet bitter story of first loves. (Source: MANGA MILLION)