That Wolf-Boy Is Mine!

is a shoujo manga by Yoko Nogiri. It was serialized in the Aria manga magazine from August 2014 to March 2016, and is complete in four volumes. Kodansha Comics has licensed it in English.

Plot
After some traumatic experiences, Komugi Kusunoki transferred from the city to start a new life in rural Hokkaido. But on her first day of school, the school heartthrob Yū Ōgami blurts out, “You smell good!” Despite the hijinks, Komugi tries to adjust to her new school, but it’s not long before she stumbles across Yū dozing off under a tree. When she attempts to wake him up, he transformed…into a wolf?! It turns out that Yū is one of many other eccentric boys in her class year–and she’s the only one who knows their secret…!

Official
Official English site