Arai Sayaka

Matsuo (松尾) is a minor character, the classmate of Rito Yuuki in both his first and second year. She is Haruna Sairenji's fellow member of the tennis club.

Appearance
Matsuo has short brown hair and black eyes in the manga (green hair in the anime). Her measurements are B75-W55-H80. She has huge breasts in the manga but only 75 centimeters in the anime.

Plot
Matsuo never involved in any major plot but she's featured as one of the most outstanding minor characters in Sainan High. Most of her appearances are for fanservice sake.