Tanaka-kun is a Japanese manga series created by Yasumura that follows the life of a high school student named Tanaka. He is known for his laid-back personality and tendency to be lethargic, often preferring to sleep or relax rather than engage in activities. His friends, especially Ohta, often help him navigate school life and social situations. The series has been adapted into an anime, which further explores the humorous and heartwarming moments of Tanaka's daily life. It highlights themes of friendship, the importance of taking things easy, and the joy found in simple moments.