The Itoshi family consists of the following members:  
- Father: Itoshi Sanjihoo  
- Mother: Itoshi Sachiko  
- First son: Itoshi Sae  
- Youngest son: Itoshi Rin

Itoshi Rin's attitude can be described as intense, determined, and highly competitive. He is aloof and reserved, often keeping others at a distance

Itoshi sae confident, blunt, and ambitious. He is highly skilled and carries an air of superiority, often looking down on those he deems inferior. Sae is driven by a desire to be the best