Dalmuri Jineun Nat

Sang-Hyeon is a recessive alpha who is the head of a chaebol family. The dominant alpha Tae-Won has always been attached to him like a shadow, distrusting those around him. Sang-Hyeon had always taken Tae-Won for granted, but after learning that Tae-Won has been using him, he tries to escape from the one who has been abusing his body...

(Source: BOMTOON, translated)

Note: Chapter count includes 5 side story chapters.