Saeki is noted to have gentle eyes that match his mild and gentle-mannered personality. He wears glasses and he has short, black parted hair.
He is mild-mannered and has a habit of talking politely to people regardless of whether they are younger or older. This is a stark contrast to his job as a cleaner.
Light Novel Volume 1Edit
Saeki is the one who treats Lin after he is stabbed by Ivanov, and he is later approached by Banba for another favour. Banba wishes to buy a dead body which he can use as part of his plan, and Saeki helps out by performing surgery on it to make it look more like Banba.
Saitoh also makes use of Saeki’s services when he decides to have plastic surgery done to make himself look different, after his image was posted all over news sites when he was framed for the murder Qaomei Lin.
After the events of the first novel, Saeki is seen playing baseball with the rest of the Hakata Tonkotsu Ramens baseball team.
Light Novel Volume 2Edit
Saeki provides Martínez with the dead body of a young man, and performs surgery on it to make it look more like Lin so it can be used to trick Abe and Yamamoto. After Martinez saves Lin, he is taken to Saeki’s Cosmetic Surgery Clinic where Saeki treats his wounds. After Lin wakes up, Saeki receives a call from Banba. He tells him that Lin is at his Clinic and that he is very much alive.