|Japanese Name: 近江新大阪|
|Romaji: Oumi Shinogu|
|Date of Birth: November 8th 1995|
|Age: 17 (18)|
|Japanese VA: Hirakawa Daisuke|
|English VA: Liam O'Brien|
Shinogu is a protagonist of the series and the childhood friend of Saya Fujimori and Rei Komura. He is the cousin of Suguru Oumi and is the descendant of the snake and the unofficial leaders of the Guardians who protect the Tamayori Princess.
Shinogu is the cousin of Suguru Oumi and is a Guardian meaning he is a descendant of the snake. He is the childhood friend of Saya Fujimori and is one year older than her. He acts like a big brother to her, as children Saya & Shinogu made a promise to one another and he gave her a teddy bear which Saya has kept to this very day. He is also childhood friends with Rei who he acts like a big brother too. Shinogu has an older sister called Fuyumi Oumi who is four years older. He is the youngest son of Chizuru and Tatsuyoshi Oumi.
Shinogu is the calm and cool Senpai of the Guardians. Shinogu is shown to stay calm in even the most scariest situations like his cousin he is the unofficial leader of the Guardians. Shinogu is very popular at school and is often seen with girls swarming over him. He is the childhood friend of Saya, he harbours feelings for Saya and feels pathetic when he fails to protect her, his powers finally unleash when he realises Saya's true feelings. Shinogu's hobbies are astronomy and puzzles. He is also very kind and caring and always likes to help his friends out in times of need at school Shinogu is a class representative but like Hibiki is rather popular at school. Shinogu is best friends with fellow guardians Hibiki.
Shinogu is a tall young man with short blue hair and he has purple eyes he wears Seinaru Private School uniform. His casual clothes consist of a long sleeved white shirt with a grey and black diamond pattern then he wears a black dress jacket over it a pair of blue jeans with a red belt and a pair of brown shoes. During summer he wears a white collar shirt with short sleeves and grey pants.
As a child Shinogu wore a long sleeved black shirt undearneath a green t-shirt with brown shorts and a pair of white socks with black trainers.