Brigadoon 4: Hope Amid Chaos

Marin is a 13 year-old girl who lives in a very poor section of Tokyo. When she finds herself the first victim of an attack by an evil alien robot known as a Monomakia, she is saved by a robot protector named Melan Blue. Subsequently, Melan Blue installs himself as Marin's full-time protector, causing a few problems for her at school. In these episodes, when Marin and Melan go on vacation, the Monimakias make the most of the opportunity their absence presents.