Manga Study Group Chapter 142. Whether you are looking for Study Group Chapter 142 you are coming to the right place. Study Group , it is a Manga/Manhwa/Manhua translated in English, written by Hyungwook Shin This Comic is About Gamin Yoon, a 17 year old student, goes to a school known to harbor future criminals. Stuck in a carnivorous environment where only the strongest survive, he struggles to get good grades to enter a 4 year university. But, will he be able to study well enough to enter university, or will he get involved in the unending fights around the school?