Samurai Korekiyo

Korekiyo Shinguji is a talented and very dangerous samurai. He was dedicated to his work, because in the past he was trained very seriously in order to successfully carry out his duties. He never abandoned his tasks and killed his victims without any regret, preferring to do it without hesitation and wasting time
However, one day, he was given a very unusual assignment, which he had never carried out before. Namely, he had to protect the heiress of a famous clan, the continuity of which was already at risk. Korekiyo had no choice but to accept this mission, because that was what he was ordered to do. From the information, he learned that the one he was supposed to protect was a young girl - the only daughter of the emperor named Kimoto Tsuyuri
From the very beginning of his work, of course, he had a cold attitude towards Kimoto, working only because of the emperor's order, but gradually Korekiyo began to understand that for some unknown reason, his heart wanted to protect and be with her of her own free will. Without realizing it, Korekiyo began to watch Kimoto more closely, protecting her from even the most insignificant things.
It took Korekiyo a long time to understand that he loved this girl with all his heart and wanted to win her love back by any means necessary, even though he knew it would be hard since she saw him as nothing more than a hired bodyguard

Korekiyo was tasked with protecting the princess of an ancient clan, but he soon fell in love with her.