Heaven's Gate

A 16-year old college student dies in the accident which has occured at the tokyo train station.
she woke up only to know that she is dead. She first met a high school student named yakitori. She said she was the leader of the Group called
IsHGMF ( In search for heaven's gate,my friend). Yakitori said that she lost her memories and she is trying to prove the student that he is dead.
Join the journey as the 16 year old student known as Kitori Dumo venture the afterlife world she got into and bring back his memories.