"Riku is the main character in the Japanese manga ""Opening Up Prince Charming With the Right Strategy"". He is a handsome and intelligent high school student who is extremely popular with his peers. Riku has a cold and condescending demeanor that often puts people off, but is also known for his sharp wit and dry humor.

Despite his popularity, Riku has a deep-seated fear of being rejected by others, especially romantically. This stems from a past experience where a girl he liked rejected him, leading him to believe that he is not good enough for anyone.

Riku is also a talented artist and an avid reader, often immersing himself in books as a way to escape his insecurities. However, he is not without flaws; he can be stubborn and aloof, and his fear of rejection often leads him to push people away.

Throughout the manga, Riku takes on the challenge of opening up his heart and becoming more vulnerable, both in his relationships with his friends and with the people he is attracted to. He slowly learns to trust in others and to believe in his own worth as a person.

Despite the numerous obstacles he faces, Riku persists in his quest for personal growth and ultimately emerges as a more well-rounded and compassionate person. Through his journey, readers are given a glimpse into the struggles and triumphs of coming of age and finding one's place in the world."