Yasuki Hatake is a Jonin of the Hidden Leaf Village. He uses fire Release and water Release. He is also a descendant of Kakashi Hatake. Being a jonin he is required to teach a genin squad and train them to become shinobi and to help them progress to the level of chunin but he decided he would pick his students and chose Kioto and Rogen Toriyama.
Yasuki is a very skilled jonin and has been on multiple missions. His Team consist's of Rogen Toriyama and Kioto. he has helped both of them develop their skills and their ninjutsu along with helping Rogen develop Hurricane Blade, Cyclone Gale, and Cyclone Blade.
Yasuki wears a flak jacket like all the other jonin. Unlike his ancestor Kakashi, yasuki doesn't have white hair.
Yasuki's abilities are that he is relativetly good at coming up with battle strategies offensive and defensive against multiple opponents. He has a wide variety of fire based and water based jutsu. He can shoot fire from his palms and sustain them there in a arc shaped (almost like a sword) and use them offensively and defensevily. Along with his jutsu skill he is also skilled in taijutsu.
Yasuki has seen his dad use alot of jutsu and practice with Might Guy alot. One day he saw his dad use the Rasengan and Yasuki was so fascinated by it he begged his dad to teach it to him. And so he did, up until the day he died. Since then Yasuki hasn't told a soul that he was working on Rasengan and actually stopped working on it until his match with his Uncle. In that match after learning about lightning release and creating his kekkai genkai Steam Release he decided to reveal his Rasengan to Setsuna and just showed it to him.
Yasuki is a wise person. he has a somewhat sarcastic attitude when outside of battle. when in battle his attitude immediately changes to a serious attitude but calm in bad situations
with Rogen Toriyama- Yasuki is like as mentor and brother to rogen. Helping him develop some of his personal jutsu and helping him learn how to work with his Eagle eye.
With Kioto- like rogen yasuki is a mentor and brother to Kioto.
with the Hokage- Yasuki is one of the Hokage's most trusted jonin's and depends on him and trusts him with all the tasks the hokage gives him.