"Riku is one of the main characters in the Japanese manga ""Don't be so harsh!"" created by Yuki Kamatani. Riku's name appears frequently in the storyline as he plays a significant role in the plot.

Riku is a tall and handsome young man with a laid-back personality. He is known for his easy-going nature and carefree attitude towards life. Despite his laid-back exterior, Riku is a very dedicated and hard-working individual. He takes his responsibilities seriously and strives to be the best at everything he does.

Riku has a passion for cooking and dreams of becoming a world-renowned chef. He is often seen experimenting with new recipes and flavors, and loves to share his culinary creations with his friends.

Riku is a loyal friend and is always there to lend a helping hand when needed. He has a great sense of humor and is known for his quick wit and clever comebacks. He is also a great listener and always makes time to listen to his friends' problems and concerns.

Although Riku may seem carefree and easy-going on the surface, he has a deep emotional side that he keeps hidden from others. He has a complex family background, and his past experiences have left him with some emotional scars that he struggles to cope with.

Throughout the course of the manga, Riku's character undergoes significant growth and development. He learns to confront his inner demons and tackle his emotional issues head-on. His dedication to his dreams and willingness to face his fears make him a truly inspiring character.

Overall, Riku is a multi-dimensional character with many layers of depth and complexity. His passion for cooking, loyalty to his friends, and inner struggles make him a compelling and relatable character that readers will root for until the very end. So, Riku is an interesting character in the manga ""Don't be so harsh!"" created by Yuki Kamatani."