Teppei Neru is a member of the Japan U-20 team.
- No-Nonsense Full Back: A full back who knows their strengths and their weaknesses, focusing predominantly on their defensive duties and rarely joining the offensive.
High Speed: Neru is considered to be a speed-type defender, who uses his incredible speed to physically outpace attackers and steal from the ball from them. Isagi went to so far as to describe him as "lightning fast", although it is his high reaction speed that enables him to instantly be able to tell the direction the attacker is going, allowing him to use his physical speed to catch up. Using this combination of reaction and physical speed, he was able to lock down Kenyu Yukimiya (known for his 1-on-1 dribbling skills) without much effort. However, he is succeptable to being overcome if he is approached by more than one attacker, as he can react to late to their play.
- Explosive Acceleration: Neru also has an explosive acceleration, enabling him to quickly catch up with an attacker, even if he has been bypassed. When face-to-face with an attacker, he uses this acceleration to pounce on the ball and steal it.
- The name Neru means "sleep."
- Neru's surname, Teppie means "soldier, army and strategy."