Shinichiro Sano

Shinichiro Sano 「佐野・真一郎, Sano Shinichirō」 is Mikey and Emma's older brother and Izana's adoptive older brother; a delinquent of great status and influence, being the leader and founder of the Black Dragon, the number one gang in all of Tokyo during his time.

As an adult, Shinichiro has unkempt black hair that he keeps at a medium length. He usually has a serene expression. He wears casual clothing and has a chain necklace.

In his youth, when he was the leader of the first generation of Black Dragons, Shinichiro wore his hair slicked back in a pompadour and wore the gang's uniform. He can also be seen with this same hairstyle when he was still living in his grandfather's dojo.

Shinichiro has been mentioned several times throughout the series, most notably by his brother Mikey. He is often described as a boy who is "weak with women, weak in fights, but reliable". Shinichiro was a notorious delinquent with an unrivaled reputation who earned the respect of many other delinquents, both within his gang and rival gangs. Although he was a terrible fighter, his caring personality and ability to stand up for others, coupled with his humble nature, earned him the loyalty of many delinquents much stronger than him.

As a result of this elevated status, his motorcycle shop became a place where criminals could freely congregate, and where every visitor showed nothing but respect towards Shinichiro. He saw the good in people and hoped that they would be guided down the right path in life rather than walking alone.

Shinichiro is a kind person who cares for others, particularly his family whom he loves dearly, teaching his younger siblings about crime, fashion, bicycles, among other things. He cares deeply for his siblings and wants the best for them.

Authority
Being the founder of the Black Dragon, he had complete command of one of the strongest gangs ever seen. His guidance and leadership were highly praised and allowed him to lead countless powerful criminals.

Fighting skills
It is said that Shinichiro was indeed a terrible fighter, and many of those who pledged their loyalty to him were considerably stronger than him.

Charisma
Shinichiro possesses incomparable charisma. During his prime and even after his passing (in the early timelines), many criminals of the current generation still look to Shinichiro as a source of inspiration. Shinichiro was able to inspire others due to his ability to defend others along with his impressively humble nature despite his fame. These traits made Shinichiro universally respectable. Despite being a very weak fighter, he was able to lead not only the Black Dragon, but also in a more unofficial sense, the world of criminals as well, as even rival gangs respected him.

Mechanical skills
Shinichiro had a lot of interest in motorcycles, so much so that when he became an adult and left the world of crime behind, he opened his own shop called S•S MOTORS. This store was where he spent much of his time and also where, unfortunately, he would lose his life.