Yû Shirota

Twelve year old Ryoma Echizen is the tennis prodigy from America who has the personal history of winning 4 successive victories at the American Junior Tennis tournaments. His father, Nanjiroh Echizen, a tennis player of legendary status, recalls Ryoma back to Japan to attend the distinguished school of Seishun Academy Middle School... (imdb)

An orphaned aristocrat summons a demonic butler to aid her, at the price of her soul. (imdb)

Kou Ichinomiya (Kento Hayashi) comes from a wealthy family & his father runs a famous company. Kou is smart enough to already run several high-flying firms. From an early age Kou's father taught him to never owe anybody anything. Because of this, when he does owe someone something he will suffer an asthma attack. He's obsessed with never becoming in debt to another person. (asianwiki)

Kou Ichinomiya has always lived according to the creed of his wealthy, successful family: never be in debt to anyone. But one day, under the Arakawa Bridge, his life is saved by a homeless girl named Nino. In order to pay her back, Kou promises to be her boyfriend; and thus begins his new life under the bridge. (imdb)

High school student Saya Toma (Erika Toda) lost her parents and younger brother in an airplane accident. Detective Akio Kondo (Yu Tokui) came and told her "your family has a high possibility that they were killed by people who have spec." That was the first time she heard of "spec". 6 years later, Saya Toma, who has never forgotten what the Detective said, decides to become a detective. She returns to Japan after receiving training by the FBI in the United States. (The Movie Database)

A high school student discovers he is an Ajin, a demi-human being. He ends up a fugitive on the run because of his powers. (imdb)

Naoki is a host working at the Akegarasu host club in Shinagawa, Tokyo. He plans to use his large winnings from a gambling bet to pay off his debts. The money goes missing at the club, and his co-workers claim to know nothing about what happened, Naoki grows increasingly desperate as he faces being thrown into the bottom of the Tokyo Bay by his loan sharks.

Masao, bullied by his teacher and his classmates, endures further torment until one day a paranormal girl covered in scars appears before him.

Onizuka, an ex-biker gang leader, has decided to become the world's greatest teacher for the purpose of meeting sexy high school girls. But he just found himself teaching a class of delinquents and everyone tries to find a way to fire him. (imdb)