Based on the Last Apprentice with BTS face claims and a couple of girls you might recognize. 😉
 

Cover by InderjitBindra 

Cover shop: Flora Graphic Portfolio (link in comments)

𝒪𝓃 𝓉𝒽𝑒 𝓋𝑒𝓇𝑔𝑒 𝑜𝒻 𝒸𝑜𝓃𝓈𝓊𝓂𝒾𝓃𝑔 𝓉𝒽𝑒 𝓌𝑜𝓇𝓁𝒹, 𝓉𝒽𝑒 𝒦𝑜𝒷𝒶𝓁𝑜'𝓈 𝒽𝓊𝓃𝑔𝑒𝓇 𝒻𝑜𝓇 𝓅𝑜𝓌𝑒𝓇 𝓉𝑜 𝒸𝑜𝓃𝓉𝓇𝑜𝓁 𝓉𝒽𝑒 𝒽𝓊𝓂𝒶𝓃 𝓇𝒶𝒸𝑒 𝒷𝓇𝒾𝓃𝑔𝓈 𝓉𝒽𝑒𝓂 𝒸𝓁𝑜𝓈𝑒𝓇 𝓉𝑜 𝓉𝒽𝑒 𝒞𝑜𝓊𝓃𝓉𝓎, 𝓌𝒾𝓅𝒾𝓃𝑔 𝑜𝓊𝓉 𝓌𝒽𝑜𝓁𝑒 𝓋𝒾𝓁𝓁𝒶𝑔𝑒𝓈 𝓁𝑒𝒶𝓋𝒾𝓃𝑔 𝓃𝑜 𝑜𝓃𝑒 𝓉𝑜 𝓉𝑒𝓁𝓁 𝓉𝒽𝑒 𝑔𝒽𝒶𝓈𝓉𝓁𝓎 𝓉𝒶𝓁𝑒. 𝒯𝒽𝑒𝓎 𝓌𝒾𝓁𝓁 𝓃𝑜𝓉 𝓇𝑒𝓈𝓉 𝓊𝓃𝓉𝒾𝓁 𝒶𝓁𝓁 𝓉𝒽𝑒𝒾𝓇 𝓋𝒾𝒸𝓉𝒾𝓂𝓈 𝒶𝓇𝑒 𝑒𝒾𝓉𝒽𝑒𝓇 𝒹𝓇𝒶𝒾𝓃𝑒𝒹 𝑜𝒻 𝓉𝒽𝑒𝒾𝓇 𝒷𝓁𝑜𝑜𝒹 𝑜𝓇 𝓌𝑜𝓇𝓈𝑒 𝑒𝒶𝓉𝑒𝓃 𝒶𝓁𝒾𝓋𝑒. 𝐿𝒾𝓉𝓉𝓁𝑒 𝒾𝓈 𝓀𝓃𝑜𝓌𝓃 𝑜𝒻 𝓉𝒽𝒾𝓈 𝑜𝓉𝒽𝑒𝓇𝓌𝑜𝓇𝓁𝒹𝓁𝓎 𝓇𝒶𝒸𝑒 𝓉𝒽𝒶𝓉 𝒾𝓈 𝓅𝑜𝒾𝓈𝑒𝒹 𝓉𝑜 𝒶𝓉𝓉𝒶𝒸𝓀.

𝒲𝒽𝑒𝓃 𝒯𝑜𝓂, 𝓉𝒽𝑒 𝒮𝓅𝑜𝑜𝓀𝓈 𝒶𝓅𝓅𝓇𝑒𝓃𝓉𝒾𝒸𝑒 𝒾𝓈 𝒸𝒶𝓅𝓉𝓊𝓇𝑒𝒹 𝒷𝓎 𝓉𝒽𝑒𝓂, 𝒶𝓃 𝓊𝓃𝓁𝒾𝓀𝑒𝓁𝓎 𝒽𝑒𝓇𝑜 𝒸𝑜𝓂𝑒𝓈 𝓉𝑜 𝒽𝒾𝓈 𝒶𝒾𝒹𝑒, 𝒢𝓇𝒾𝓂𝒶𝓁𝓀𝒾𝓃, 𝓉𝒽𝑒 𝒹𝓇𝑒𝒶𝒹𝑒𝒹 𝓌𝒾𝓉𝒸𝒽 𝒶𝓈𝓈𝒶𝓈𝓈𝒾𝓃. 𝒲𝒾𝓁𝓁 𝒢𝓇𝒾𝓂𝒶𝓁𝓀𝒾𝓃'𝓈 𝒹𝒶𝓇𝓀 𝒽𝑒𝒶𝓇𝓉 𝓈𝑜𝒻𝓉𝑒𝓃 𝒾𝓃 𝓁𝒾𝑔𝒽𝓉 𝑜𝒻 𝓉𝒽𝑒 𝓁𝑜𝓋𝑒 𝒶𝓃𝒹 𝒻𝓇𝒾𝑒𝓃𝒹𝓈𝒽𝒾𝓅 𝑜𝒻𝒻𝑒𝓇𝑒𝒹 𝒽𝑒𝓇 𝑜𝓇 𝓌𝒾𝓁𝓁 𝓈𝒽𝑒 𝓈𝓊𝒸𝒸𝓊𝓂𝒷 𝓉𝑜 𝓉𝒽𝑒 𝓌𝒾𝒸𝓀𝑒𝒹 𝒸𝒽𝒶𝓇𝓂𝓈 𝑜𝒻 𝓉𝒽𝑒 𝒦𝑜𝒷𝒶𝓁𝑜𝓈 𝓅𝓇𝒾𝓃𝒸𝑒 𝒶𝓃𝒹 𝒽𝑒𝓇 𝑜𝓌𝓃 𝒽𝓊𝓃𝑔𝑒𝓇 𝒻𝑜𝓇 𝓅𝑜𝓌𝑒𝓇?

https://youtu.be/R39OcEE_GVA

Grimalkin is the beautiful witch assassin for the Malakin clan. She once hunted Tom, the Spooks apprentice but when she was unable to defeat him, her only defeat mind you, she realized he was the person scryed to be her only chance to destroy the Fiend, her life-long enemy. 

Thomas Ward is the Spooks apprentice. He is the seventh son of a seventh son and has special abilities that enable him to sense the dark and see things that others cannot. He studies dark magic and its creatures to defeat them. Tom has other special abilities that Spooks don't have since he is a descendant of an old god. These abilities make him a target of the Fiend himself.

James Ward is Tom's older brother by one year.  He seeks Grimakin's aide to free his brother. As they travel together to his brother's aide, an unlikely connection blossoms. He is a blacksmith by trade and has this skill in common with the stunning witch. He has no powers, but when no one comes to Grimalkin's aide, he risks everything to get her back.

Old Gregory is the county spook and is training Tom to take his place. His purpose is to fight the dark and train and acquire knowledge of evil creatures and how to defeat them so that this can be passed on to new Spooks. He is a strict teacher and is bound to a very strict moral code and does not approve of using the dark even for the greater good. 

Alice Dean - Trained as a malevolent witch by her mother Bony Lizzie, she turns away from her dark side when she befriends Tom. She is fiercely loyal to Tom but is still a powerful witch who can help Tom defeat evil creatures, including the Fiend.

Lukrasta is a powerful mage allied with the Fiend. He has been granted many gifts by the Fiend himself including energy manipulation, necromancy, and curses. He uses his dark magic for selfish reasons. He hungers for limitless power, immortality, and to experience all the pleasures of the flesh. He desires Alice and would do anything to impress her even enter the Kobalos camp to rescue Tom.

Hoseok is his father's favorite prince and leader of the invading forces. He is half-human because long ago the Kobalos killed all their women and must mate with human women. They enslave human females or "purrai" and use them to give birth to more Kobalos. 

Sally is the seventh daughter of a seventh daughter.  In spite of all she's been through, her toughest job may be convincing the Spook to make her an apprentice.  The world may not be ready for a female spook but she certainly is.

Balkai is closest to Hoseok and the oldest but not his father's favorite as he is more interested in pleasure than power. His exalted beauty is matched only by his high opinion of himself. He prefers to rule by manipulating others knowing that the one on top is the first to get killed.

Jabka is in charge of capturing "purrai," and keeps the most attractive ones as his personal slaves. He is devoted to making sure the Kobalos ranks do not dwindle by giving in to his passionate nature.

Kookah is the youngest prince but certainly not the least feared. His prowess with a sword is second to none and he easily controls creatures with his mind. When not out seeking evil creatures from foreign lands to add to his collection, he is in charge of the arena fights to the death.

Taen - This two-faced prince finds favor with Hoseok by spying on his brothers. He is an alchemist adept at creating gruesome dark creatures. Some say he is adept at transforming himself to better spy on others.