Saitama vs Kid Buu

Hello everyone. Here I will state why I believe that in a fight, Kid Buu would eventually defeat the One Punch Man. Saitama is incredibly powerful, unbelievably actually, but his strength isn't a factor against the likes of Kid Buu. Kid Buu cannot be defeated by physical means. You see, for those of you who don't know of Kid Buu, he is a being made up of magic. His body can completely regenerate in seconds, even from the tiniest of molecules. He's restored himself even after blowing up planets while still on it. I think Kid Buu would toy with Saitama in the beginning. Saitama would continue his devastating blows, and Kid Buu would laugh them off, though he'd get a bit frustrated that his attacks aren't doing as much as he'd hope. You can argue that Saitama's fought against enemies with regenerative abilities before, like Boros. But Boros' regeneration and Buu's regeneration are completely different. Buu can regenerate himself completely in seconds, without thinking too much. And it appears that Boros needs to focus on his injury to regenerate it, since he did not restore his arm when he first lost it. Not only that, but Boros used all his energy to attempt to destroy the planet. After he used it, he had no energy left. Kid Buu seems to have no real limit to his ki. It seems to restore itself, same as his regeneration. We've never really seen Kid Buu's limits. Obviously, the Spirit Bomb was beyond his limits, but we haven't seen Kid Buu pushed to the edge, we haven't seen him tire out ever! Because of this, it's hard to accurately calculate Kid Buu's limits... There are a couple different ways that Kid Buu could win this fight. He could use his Chocolate Beam on him. The Chocolate Beam is a magical beam that turns the enemy into chocolate, letting Buu eat him and gain his powers. Saitama has deflected energy based attacks before, like Boros' devastating attack. But the Chocolate Beam cannot be deflected at all. As soon as it touches something, it'll turn it into chocolate. Buu also has a different attack similar to this called the Candy Beam, which does the same thing, except turn the enemy into candy. Finally, there's the Cookie Beam. You can guess what it does. Another way he could win is by blowing up the planet. Kid Buu can breath in the vacuum of space. He's shown doing this when he blows up Earth. Saitama cannot breath in space, and it's unclear if he can take a planetary explosion. Even if he could, he'd eventually die in space. Whether it be from lack of oxygen, or by Kid Buu beating him down while he floats through space. Don't get me wrong, I'm a BIG Saitama fan. I love to watch One Punch Man, it's both epic, and humorous. But Saitama has no way of killing Kid Buu. The only way to kill Kid Buu is to completely destroy his entire being. The Spirit Bomb could do this, because the Spirit Bomb is an attack made to destroy evil ki. And even with an attack like that, Buu could hold it back until he met his demise. Now, I'm not saying that Kid Buu would be able to easily damage Saitama. Saitama's durability is unbelievable. He took a kick that sent him flying straight to the moon. And it didn't even faze him! The only real way Kid Buu could defeat him is by either turning him into candy and eating him, or blowing up the planet, leaving Saitama in the vacuum of space.