Is One Love coming back?

After graduating, "Diao" got a creative job at Food Delivery company and moved to live with his sister "Dao". Dao bought this house with her boyfriend but when they broke up, she could not afford the rental fee alone, so Diao came to help. Fortunately, Dao's house has another small house beside which Dao could rent out to lighten the load of expenses. This led a perfectionist like Diao to feel worried about new tenant who would share the house. 

However, fate works in strange ways. New tenant "Rak" had nothing at all in common with Diao. Not only his misbehaved brother kept looking for trouble everyday which led Diao felt annoyed, Rak also became his boss and often ordered him to revise his works. The war started when Rak was the boss in the office while Diao was the boss at home, causing trouble on both fronts

After being together, Diao and Rak realize the positive side of each other. From rivals turned to be lovers but could not disclose in public since they both carried many expectations. Will this secret love succeed?