(Never addressed) Here's a couple of freebies: You might want to rename your first group to "Vongola Guardians", since 1) that would sidestep the embarrassing inconsistency of claiming that "family" is why you have them at the top and 2) it needs changing anyway, because that's not how protagonist and antagonist are defined. Likewise, you might want to categorize the characters by "Combatants" and "Noncombatants" to keep your favorites on top - being open about your preferences would put you on much firmer ground. Saying that "Reborn! is primarily about combat" is still theoretically open to question, but that position is a lot stronger and easier to support than "because what me and someone else like is important."