Stuck With A Owner (Sekaiichi Hatsukoi Fanfic!)

Let me ask you, What if, Onodera Ritsu has his nasty personality all this long but hid it, until high schooll that is. Accidentally letting his personality slip out right at the exact moment where he's most hated person, Saga Masamune saw him? Ritsu is known for being quiet and clumsy but will that Senpai spoil his image? Really? What happened? What made Ritsu hit him and the next day started dating? Ritsu started thinking..."He's just using me as a toy to amuse him", but why did Ritsu run away when Masamune wanted to kiss him? Why did he disappear? And we did they meet 2 years later as boss and employee? But this time, who do you think is the boss?