Yukino is the leader of the Service Club, of which she is the sole member until Hachiman joins her. She is smart, beautiful, and is nicknamed the "Ice-cold Beauty" for her icy demeanor. She has a twisted sense of "noblesse oblige," and believes that it is the duty of the exceptional (in other words, herself) to help the "lost lambs" of the world. Her personality often leads her to be disgusted at the naivety of others, particularly Yui's, and she does not hesitate to show it. Despite this, Yui still affectionately calls her "Yukinon." (Source: Vistrans)

Ultimate Skill - Wisdom King Raphael, King of Gluttony Beelzebuth, Covenant King Uriel, Storm King Veldora, The main protagonist of the series and Founder as well as Chancellor and King of the monster nation known as the Jura-Tempest Federation. Originally Mikami Satoru, a 37-year-old general contractor, he was stabbed by a passing robber while protecting one of his co-workers and reincarnated in a new world as a slime, one of the lowest monsters on the food chain. In spite of the situations he finds himself in, he often tends to be very easygoing, yet calculating and cautious. A pacifist at heart, he tries to avoid casualties and save people if possible and wishes to maintain good relations with humans. (Source: Tensei Shitara Slime Datta Ken Wiki, edited)