(COMPLETED) Nathalie Mariano is an unfortunate woman. Her family abandoned her when she was just a kid, she was forced to live with a group of thieves to survive. She became a thief for as long as she can remember, she can say that she's already an expert in that field. Ashteroh Alexeev is a wealthy jewelry company owner who's rumored to be a weak old man and he's her new victim. But she regretted it afterward because he's far from being a weak old man she expected.

In the midst of solving mysteries and exploring their undeniable chemistry, Fifteen Salustiana is determined to help Xildius Vouganville confront his dark past and embrace the light once more. As they uncover the truth behind every crime, she must also seek the truth behind Xildius's fears. *** Desperate for money, Fifteen Salustiana takes a job as the personal assistant to the enigmatic Xildius Vouganville, or XV, a genius professor living in the eerie mansion of Villa Vouganville. XV, a master of anatomy and psychology, solves crimes from the shadows, haunted by a dark past that keeps him from stepping into the sunlight. Fifteen becomes XV's eyes and ears in the outside world, venturing out to gather clues and solve crimes. As they work together, she finds herself drawn to XV's brilliance and vulnerability. The more time they spend together, the more she realizes her feelings for him are growing stronger. Will Fifteen be able to help XV step out of the shadows and into the light, or will their love be consumed by the darkness? DISCLAIMER: This story is written in Taglish.