Kaitō Mizushima (水島快刀, Mizushima Kaitō) was a shinobi of Konohagakure, a member of its Mizushima Clan, and a master blacksmith. He was Kasumi's mentor up until his death. Kaitō is an original character of ~Love-Inspired on deviantART. (Now on SweetContext).
Kaitō was the second youngest child of Ushi and Naoko Mizushima. Talented and charismatic, he succeeded in all of his short term goals related to his smithing by age 14; able to take on an apprentice and be a mentor to his Akiyama Clan partner. At 10, he returned from the academy to find one of his family's shops ablaze, and his mother missing an arm. This would result in him being overbearing towards his mother's well-being.
By the end of the following year, he would come to meet his new pupil -- Kasumi, who'd just been born. Upon this meeting, he decided on a long term goal; protecting this child from harm and teaching her to the best of his ability, even if it were to cost his life. Every month following her birth (aside from the times where the village's relations were unstable), he would make sure to visit his pupil to be. When she was around age 4, he began to teach her swordsmanship.
For two years, a special project was the younger's gift, a long katana that gave off a white sheen. Kaitō had put every bit of his knowledge into crafting this blade and proclaimed it to be his best creation.
Kaitō is a man of above average height, with a medium build and fair features. He has long, olive hair tied back in a ponytail, with bangs that frame his face. His eyes are a deep gold color and he's been noted to have a strong and piercing gaze on occasion.
Kaitō's attire consists of a brown kimono with gold stripe accents, tied at the waste with a sash. His two katana are held by ties on his side.