Sawada Shin

Shin Sawada (沢田 慎   Sawada Shin) is one of the students at Shirokin High School and a student of Kumiko Yamaguchi. He is known as the Leader of the 2-4 Class.

Background
He's portrayed as the class leader of the class 2-4. Everyone in the class looks up to him. Shin is feared because of an incident back in junior high, where he punched a teacher.

Personality
Although Shin is one of the greatest fighters at Shirokin, he is also an excellent student. He is at the top of not only Class 2-4, but also his grade level if not the entire academy. He is usually a serious person with a laidback attitude, and cares very much for his friends.

Appearance
Shin has nearly shoulder length black, which is currently dyed bright red. His hair is typically parted with the right side nearly covering his eyes. He is mostly seen wearing the Shirokin school uniform, and a necklace. During Spring and Winter, he also wears a dark winter coat. In the second half part of the series, he was seen wearing a summer version of the Shirokin school uniform.

In his live-action appearance, Shin's hair is black which is currently dyed mahogany brown with blond highlights but on later episodes his natural black hair darkens over time leaving his dyed mahogany brown hair became highlights on the tips and when he wears his Shirokin school uniform, his school jacket is open to show his white short sleeve undershirt or a long sleeved button shirt.

Yamaguchi Kumiko
When Shin first meets Kumiko, a classmate throws a packinko ball at her, which she dodges and catches it. This causes Shin to immediately realise that something is not normal about Kumiko and he keeps an eye on her after to find out the truth.

While everyone else in the 2-4 class calls Kumiko 'Yankumi', Shin is the only student in the class to not call her that nickname. Instead, he just refers her as 'Yamaguchi'. She is also the person who serves as his primary love interest throughout the series, which he confesses that he loves her in the final chapter of the manga.