Fujibayashi Scroll (藤林): Kai of Mibuno
Oh, Kai (魁), an injutsu (1) Iga known for his bashful, recompensable character. Looking at him shows an example of accomplished growth.
Kai was born into the world on the 16th year of Tenmon (1547) to a one-armed farmer and his wife. Despite coming from a peasant family, the past of his father and the disappearance of his sister would lead him towards becoming a steadfast shinobi servant. He wanted to press himself to do right and follow his Lord, Shoutarou to the end. He also kept motivating Shou to grow into a fine Lord, and would not tolerant any amount of disrespect sent towards him.
I and other gentry Lords, such as Tsukimori and Hattori, were present for Kai's fundamental trials. One thing we noticed about him was his briskness, like he kept a passion inside of him to learn past his limits. He even wore a thick headband around his head to absorb the sweat he got from working in the fields. I think it also denoted his hard work.
According to his teacher Tsukimori, Kai had both high stamina and high patience, so he was best trained in running and waiting in any territory. In fact, there's one anecdote of when Kai was ten years old, he crossed through the Koga domain to deliver medicine to the sick and the injured for one day and one night. It was a so-called "entertainment ploy" instituted by one of the Koga families, but otherwise helpful and proved the boy's worth.
On the down side, Kai was typically illiterate. Also, his strong drive seemed to make him think up terrible, impure ideas.
He wanted to steal swords from the Imagawa Family and be able to surpass a samurai in combat ability. Also, rooted deep within was the desire to find his baby sister Hana. How strong was this desire? If he knew what happened, how would he react?
What will that committable, and big-hearted, disposition lead him to do?
Injutsu: From the word "innin" (陰忍). According to the Basenshukai, an innin infiltrates, observes the movements of others, and collect information in secret without a disguise. To achieve success, they avoid the enemy by staying out of sight. The symbol of in (陰) is also used for "yin", meaning "shadow". It represents the black side of the Taoist diagram.