Ano Hi Mita Hana no Namae o Bokutachi wa Mada Shiranai, also known as Anohana, is a poignant anime series that explores themes of friendship, loss, and coming to terms with one's past. It follows a group of childhood friends who drift apart after a tragic incident, only to be reunited years later by the ghost of their deceased friend. Together, they confront their unresolved feelings and seek closure. The series is celebrated for its emotional depth and compelling storytelling.