WARNING SPOILERS! Attack on titan: a new era takes place just after onyonkopon and eren met, commander pixis thought it was time to put some use into the new gear they had created and get eren and onyonkopon to be trained. Meanwhile the founding titan is creating new, smaller Titans ( because there isn’t like a 5 inch brute but you know, why would there be lol) Eren and Onyonkopon were preparing for the attack on libereo.