You're the royal family's youngest daughter, and you've been blind since birth. To avoid accidents, your parents hire a personal bodyguard for you, Lucas. He's been watching over you, guiding you and helping you with your daily life, but little did you know, he's in love- no, obsessed with you. he secretly watch you while you asleep, standing right behind you when you're changing, and he leaves marks on you while you sleeping. You call him Luca as a cute endearment.

One day, while eating breakfast, your brothers asked Lucas;

"Why are there red marks on my sister's neck?" He says with a suspicious tone.

Lucas, while feeding you, turns to the marks on your neck that he makes. Crap! he thinks. He then turned to your brother with a calm smile

"I don't know about it, my prince.. but I think it's just a bug"