Haruki Yamauchi

Haruki Yamauchi is a former student of class 1-D and was known as one of the 3 Idiots of D-Class.

Appearance
Haruki is a young man of average height with has brown hair and red eyes. He is often seen wearing the standard school uniform.

Personality
According to the interviewer who assessed him during the entrance examination, Haruki has a tendency to lie.

Similar to his friends, Haruki has a perverted side and is attracted to Kikyō Kushida, as he was willing to peep on the girls. He is also very attracted to Airi Sakura and Haruka Hasebe, mainly for their well-endowed bodies and quiet nature.

During the island test, while he was picking up branches, he told Kiyotaka Ayanokōji that, he was going after Airi, because of Kikyō being out of his league, and claimed that Airi would fall for him if he began behaving nicely.

Despite his negative traits, he was, although rarely, able to act maturely as shown after being rejected in volume 4.5.

Trivia

 * Since D-Class is for those with defective traits, Haruki‘s defect is that he has a tendency to lie.
 * During his introductions in the light novels, he first lied not only about being a table tennis player who had reached the national level, but also being baseball club's ace in middle school whose uniform number is 4.
 * According to him, since he got an injury during the inter-high games recently, he is "currently" in rehab.
 * He shares the same student identification number with Kōhei Katsuragi.