Erased (Boku dake ga inai machi) (2016) imdb

Title: Erased Episode 6 Bengali Subtitle By Anime Freaks
Rating  (8.5)
Plot : 29 year old Satoru Fujinuma is sent back in time 18 years to prevent the events leading to his mother's death, which began with a series of kidnappings in his 5th grade year.
Contributor : Anime Freaks