Jungmin (Soo)’s close older brother and first love, Yoo Shinwoo, dreams of marrying an Omega and building a sweet, loving family.

For this reason, Jungmin had hoped to become an Omega even before manifesting, but as if fate were playing a cruel joke, he, who so desperately wished for it, became an Alpha. Meanwhile, his twin younger brother, Youngmin, became an Omega and got engaged to Jungmin’s first love.

But Jungmin couldn’t give up on him. He believed that if he could somehow become an Omega, Yoo Shinwoo would look his way. Clinging to this foolish lingering attachment, he kept taking drugs to become an Omega, even though he knew they were poison.

Meanwhile, Kim Joohwan (Gong), who periodically has relations with Jungmin under the pretext of “correction,” watches this with amusement.

Kim Joohwan feels an inexplicable anger and discomfort seeing Jungmin, who is willing to “correct” with any Alpha if it means becoming an Omega.

But it doesn’t matter. No, he wishes Jungmin would suffer even more, be in even greater pain. Because the more Jungmin suffers, the more likely he is to eventually turn to Kim Joohwan.