Mechronicle!

Set in a mechanical world, Mechronicle tells the story of Mechanico: a small, shy, withdrawn boy with big glasses. He is totally in love with Nell, who looks after Mechanico like he's her kid brother. One day, Nell is kidnapped by Team Magu Magu, a villainous group of machines. She soon discovers that the secret to their world is hidden in her machinery. Mechanico vows to rescue Nell and, plucking up his courage, pursues the kidnappers. The adventure begins!

[Source: Tokyo Animation Business Accelerator]

© MyAnimeList