※ Please note that this work contains sensitive descriptions and narratives including domestic violence and trauma.

Lee Il-seo was kicked out of his team right before his idol debut and turned to acting instead. Though he switched to acting, he’s been a nameless actor for 4 years, only getting minor roles.

Then one day, Il-seo unexpectedly gets cast as the lead role in the famous director’s new work “Temperature of Overflow.”

His joy is short-lived when he learns that his co-star is Sa Seung-yeon, whom he’s been secretly in love with for 9 years. Il-seo does his best to keep his feelings hidden and focus solely on his performance.

However, Seung-yeon proposes a friends-with-benefits relationship under the pretext of acting practice, and Il-seo, unable to refuse, reluctantly agrees.

As their encounters become more frequent, Il-seo gradually withers from an unfillable loneliness. Then one day, he’s shocked by the sudden news of his Omega manifestation.

Before he can recover from the surprise, he discovers he’s pregnant with Seung-yeon’s child, a fact he is desperate to keep hidden…