Ao Haruhi's Manga List

Koharu is a single mother living with her 5-year-old son, Tsumugu. Her days are busy and never dull. But Koharu has one thing she's been keeping to herself... She hasn't told Tsumugu where his father is. But then one day, the wheels of fate begin to turn. Koharu randomly encounters her ex, a firefighter named Gaku. And Gaku is Tsumugu's biological father. Due to things that happened in the past, Koharu disappeared from Gaku's life without a word when she got pregnant. She thought they would never meet again, but here they are, face to face. Gaku tells Koharu that he's been searching for her all this time, his gaze focused on the future, not the past. Unaware that Gaku is his father, Tsumugu innocently opens his heart to him. This puts a knot in Koharu's chest. Koharu wanted to protect Tsumugu, but was the choice she made the right one? The truth she hid, and her feelings are being woven anew... The relationship between the three begins to change, as if to make up for the lost time...

Office worker Mizuki Kamiya is feeling deeply down about her recent break up with her ex-boyfriend Yukihiro Narimatsu. She can't catch a break, having to see him even at the company's anniversary party. Out of nowhere, someone swoops Mizuki off her feet, expressing affection for her... it's the CEO of the company, Keishi Seo! Keishi, only trying to avoid a woman stalking him, has now dragged Mizuki into his troubles. In order to keep her safe from his stalker and keep up the appearance of things, the two agree to a "contractual marriage". The CEO of a company and a worker in the offices of that same company now together, their quiet life as a "fake couple" begins. However, Mizuki becomes drawn to some of Keishi's small personal quirks. Could this be something more than a contract? What will happen to the two of them now that they can't stay apart from each other?