Mobile Suit Gundam

Until this story came out, animated story was considered one for kids. This story talked about a war for the very first time. There were no good guy or bad guy who would confront each other. There were two different justices for both sides and not only just simple purpose as "justice", but also there were intrigues, doubts, treacheries, and personal grudges in both sides. Since this story talked about a war, it also covered for civilian casualities which lead to an uncountable number of orphans, refugees, minors who were forced to fight, and painful separations of such minors and their families.

After this, story like simple confrontation of good and evil is considered one for really small kids.