Let’s see…
- Vol 1: Being severely weak compared to everyone else, faked papers, heavily bullied and blackmailed.
- Vol 2: Rejected by love interest and eventually helps rival get with said love interest
- Vol 3: Unable to help/save Pyrrha because he doesn’t know what’s going on
- Vol 4: Survivor’s guilt/depression at the death of his partner
- Vol 5: Faced with his partner’s killer, is still unable to actually do anything, misses the one good chance he had to take her out, made to watch someone else close to him “die”, unlocks Semblance which ironically could have saved Pyrrha had he unlocked it sooner.
- Vol 6: made peace with Pyrrha’s death and finally able to get out of his depression.
- I didn’t see Vol 7 or 8, but I know he was essentially forced to mercy-kill Penny to protect the maiden power.
And I guess in Vol 9: brainwashed into a wonderland knight. Possibly has to face his friends finding out he killed Penny, then not initially understanding why.