Sherlock Holmes is a fictional detective created by Sir Arthur Conan Doyle. He is renowned for his extraordinary powers of deduction, observance, and logical reasoning. Holmes resides at 221B Baker Street in London, along with his faithful friend and biographer Dr. John Watson. He exhibits a cold, distant manner and has an addiction to cocaine, which he uses to stimulate his highly active mind. Holmes is dismissive of women and often clashes with the police, but his methods are admired for solving complex cases. His archenemy is the criminal mastermind Professor Moriarty, with whom he has a complicated relationship.

Viktor Nikiforov is a world-renowned figure skater known for his extraordinary skill, charisma, and elegance on ice. He has won multiple world championships and is adored by fans for his artistic routines and expressive performances. Viktor is seen as perfectionist, constantly striving for flawlessness in his skating. His flamboyant costumes and performances often spark conversations and inspire fashion trends among fellow skaters. Despite his fame, Viktor grapples with the pressure to maintain his top status and battle against younger, rising competitors. He shares a close but competitive relationship with his professional partner and rival, Yurio Plisetsky, and has a paternalistic attitude towards his young protege, Yuuri Katsuki. Viktor prefers the company of those who share his passion for skating and is quite reserved with outsiders.