 If you liked Code Geass: Hangyaku no Lelouch R2 |  ...then you might like Jormungand: Perfect Order |
Both of the protagonists (Lelouch/Koko) are young and very clever people who portray themselves as villains, using illicit methods in order to obtain world peace. The motivations to obtain their goals seem to depend, more or less, on some younger companions (Nunnally/Jonah). Both anime also involve lots of violence and strategies to execute their plans.
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