DubChaeng (Dahyun X Chaeyoung) When you see, there is coldness. Harsh remarks, a sad being. Should you look, you see a broken heart, waiting to be fixed. Book One of the 'Should You Series.'

SaiDa (Sana X Dahyun) Should you have, you disregard, neglect and think it will stay. Should you lose, you realise what you have missed. Book two of the 'Should You Series.'

SaTzu (Sana X Tzuyu) Should you love, properly, the one you love can be happy. She you love the right person, you can be happy too. Book three of the 'Should You Series.'