E1 Da Da Meets Zero Nine E2 Da Da and Wang Joon Break Up E3 Don’t Fall in Love with Him E4 Love Doesn’t Change E5 Who Is That Guy? E6 He's My Boyfriend E7 Wang Joon Gets Jealous E8 Zero Nine Leaves Da Da E9 The Trial Period Is Over E10 Wang Joon’s Secret E11 Wang Joon Wants Her Back E12 Where Is My Toy? E13 Zero Nine Becomes Wang Joon’s Manager E14 I Want to Be Loved E15 We Came to Take Zero Nine E16 The Flower Box E17 The Culprit Behind the Flower Box E18 He Has Feelings Now E19 The Rightful Owner E20 Please Don’t Go E21 I’ll Buy Him E22 Purchase Zero Nine E23 Da Da Leaves the Team E24 What Are You? E25 Wang Joon’s Scandal E26 Diana’s Scheme E27 Zero Ten Goes After Da Da E28 Wang Joon’s Press Conference E29 Young Gu’s Error E30 Young Gu Is a Robot E31 Can't We Go Back to How We Were? E32 I Hope You Make Da Da Happy E33 The Meltdown E34 The Heart-Cooler E35 I Want to Live E36 I Want to Remember Everything E37 Young Gu’s Decision E38 Da Da Accepted Me For Who I Am E39 Goodbye My Girlfriend E40 Thank You, Young Gu