Ever Green
Manga
Evergreen is a Japanese romantic comedy shōnen manga series written by Yuyuko Takemiya and illustrated by Akira Kasukabe. Published by ASCII Media Works, it is serialized since July 19, 2011, first on Dengeki Daioh Genesis magazine and later on Monthly Comic Dengeki Daioh. Four volumes compiling the chapters have been released. It is published in English by Seven Seas Entertainment.
Description from Wikipedia, available under CC BY-SA 4.0. May be shortened.