Shin'ichirō Yamamoto (山本 真一郎 Yamamoto Shin'ichirō? ) is a minor character of the manga series Grand Blue. He is a first year Mechanical Engineering student at Izu University.
Appearance[]

Yamamoto is a chubby young man with short red-brown hair that is parted in the middle.
He is mostly seen wearing a plain t-shirt under a sweatshirt and sweatpants.
Personality[]
Yamamoto is really bent on the idea that he needs a girlfriend and he is a complete virgin.
Relationships[]
Classmates:[]
- Yū Mitarai: Yamamoto and Mitarai have somewhat of a complicated relationship. Yamamoto resents the fact that Mitarai has a girlfriend, as Yamamoto is hellbent on losing his virginity.
Etymology[]
- The name Shinichirou means "real, genuine" (真) (shin), "one" (一) (ichi) and "son" (郎) (rou).
- Shinichirou's surname Yamamoto means "mountain, hill" (山) (yama) and "base, root, origin, source" (本) (moto).