Ano Hi Mita Hana no Namae wo Bokutachi wa Mada Shiranai. S01

Five childhood friends are separated after the death of one of their friends, Meiko Honma, and are no longer friends and allies. Jinta Yadomi, who was the leader of the group when they were kids, has quit school and has become a shut-in, isolating himself from the world. One day, he suddenly sees Meiko's ghost, Meiko can only interact with Jinta. Meiko has come to ask Jinta to fulfill a wish she has always had.