Ranman

Mantaro comes from a rich family in Kochi who owns a brewery but because of him being sickly, he becomes the target of bullying. As a child, he has been fascinated with plants and decides to quit school so as to head to Teikoku University in Tokyo where he studies botany and works as a research assistant with the vision of creating an encyclopedia on all plants in Japan, he works hard to realise his dream. (Source: MyDramaList)