Monthly Girls' Nozaki-kun

Monthly Girls' Nozaki-kun (月刊少女野崎くん, Gekkan Shōjo Nozaki-kun) is an ongoing Japanese four-panel romantic comedy webcomic written and illustrated by Izumi Tsubaki. Its chapters are serialized in Gangan Online, have been published in both physical and digital releases of Shoujo Romance Girly and tankōbon volumes by Square Enix. An anime television series adaptation by Doga Kobo began airing in July 2014.

Plot
Chiyo Sakura, a high school girl who fell in love with the unrefined boy schoolmate Umetaro Nozaki, decides to be courageous one day and asks him out. Her feelings weren't conveyed properly, and before she knew it she ends up helping a particular job of his as an assistant.