In The Cage

In the Cage manga summary: Loved and tossed around by elite alphas.
Haru (omega) is in relationship with Eiji (alpha) who is also his childhood friend. But Eiji who is from elite family, already had his fiancé and Haru always came in second. Renji (alpha), an older brother of Eiji and Haru’s first love, appeared in front of him. “I came to pick you up” Renji told Haru.
Where will this complicated love triangle lead to?