Dunno if this had the manga or not

about anime

the story about a kid around middle school age who use fisherman spear as his weapon, he lives in an island , farm fish, crops, etc. There's a girl i guess who run from certain organization and the kid seems protecting him. I think the title had like conan the kid or such, i try search it and all of it resulted in detective conan. This was old anime i think, around 1990-2000 era.

Another one which i forgot, seems already the end, about a highschool girl whos classmate are actually robot. One day a guy begin lecturing her because she make ruckus in the class and nobody ever bother on it(they are all robot, so even if you punch them, they just doing their usual activity and think you are not exist). The girl are surpised because the guy was a robot and he acted like it for as long as she know in school but suddenly he acted like human/had human emotion.

Second one sounds like Classmate, Kamimura Yuuka wa Kou Itta.

Oh the anime sounds like "Future boy Conan"....lots of memories ahahaha.