Tanaka's refusal to move is the entire joke, and it never gets old because the show understands that watching someone fail at doing nothing is actually hilarious. Oota's quiet devotion to keeping him functional creates a rhythm so comfortable you stop noticing you're watching the same bit over and over. This is a show that rewards you for wanting nothing to happen, then makes you care about these people anyway.
Tanaka has perfected the art of doing absolutely nothing. This high school student operates on a single principle: conserve energy at all costs. He sleeps through classes, shuffles through hallways with his eyes half-closed, and has an uncanny ability to drift off anywhere, anytime. His dream is simple. Just let him exist in peace without anyone asking him to participate in anything. His best friend Oota has become an unwilling accomplice in this mission. Where Tanaka refuses to move, Oota steps in to handle whatever needs handling. It's a partnership born out of necessity, though Oota seems remarkably patient with constantly propping up his lethargic companion. But the universe refuses to cooperate. Between unexpected school events, well-meaning classmates, and the simple chaos of being a teenager, Tanaka's perfect apathy keeps getting disrupted. What unfolds is a low-key comedy about someone fighting tooth and nail to maintain his stubborn commitment to laziness, all while finding unlikely connections with the people around him. It's funny precisely because Tanaka never tries to be.