"Okamoto Riku is one of the main characters in the Japanese manga ""Popular Deskmate is A Cat"". He is a teenage high school student and one of the most popular boys in his class. Okamoto Riku has a charming and attractive personality that makes him stand out among his peers. He is friendly, outgoing, and caring, which makes him the favorite of many girls in his school.

Okamoto Riku has short, spiky, black hair and dark brown eyes that convey a sense of warmth and kindness. He dresses neatly and fashionably, often seen wearing trendy clothing and accessories. Okamoto Riku is also athletic and physically fit, as he enjoys playing sports and exercising regularly.

Despite his popularity and numerous admirers, Okamoto Riku is humble and down-to-earth. He is respectful of others and treats everyone, regardless of their background or social status, with kindness and empathy. Okamoto Riku is also known for his sense of humor, often cracking jokes to lighten the mood and make others laugh.

In addition to his friendly and outgoing nature, Okamoto Riku is also a dedicated and hardworking student. He takes his academic studies seriously and strives to do well in his classes. While he is often praised for his athletic abilities and popularity, Okamoto Riku is humble and acknowledges that his success is due to his dedication and effort.

Overall, Okamoto Riku is a well-rounded and likable character in ""Popular Deskmate is A Cat"". He is charismatic, kind-hearted, and hardworking, making him a role model for his peers and an admirable protagonist in the manga series."