The TV anime series Ano Hi Mita Hana no Namae o Bokutachi wa Mada Shiranai. (or simply AnoHana) is an original project created by studio A-1 Pictures, as a slice-of-life anime about six childhood friends who grew apart in high school. One of them is Jintan, now a shut-in. He gets a request to fulfill a wish for Menma, the only one of their friends to have stayed the same over the years. In order to grant her wish, he will have to find and reunite their old friends. (based on ANN synopsis)
AnoHana is a really enjoyable anime. It takes you back, hot summer days, ice cream, or friends. It also has a very heavy emotional side to it, as AnoHana explores how 5 friends cope with the death of their own. It unravels their feelings, and somewhat your own. You'll really like it if you take the time to watch AnoHana.