ReLIFE
A very popular ongoing webcomic series by Yayoi Sou that serialized in Comico. It is the first series ever from Comico that was published as a tankoubon volume with the first volume published by Earth Star Comics on 12 August 2014. An anime adaption by TMS Entertainment has been announced for the Summer 2016 season.
The story follows Kaizaki Arata, a 27 year old jobless man who fails at every job interviews he had after quitting his last company which he only last 3 months. His life changes after he met Yoake Ryou of the ReLife Research Institute, who offer him a drug that can change his appearance to 17 years old again and to became a subject in a 1-year experiment in which he begin his life as a high school student again.