Who is the strongest?

It's easy to get lost when there are so many, right? How about checking the skills of the characters you have and prioritizing the ones that seem to have good synergy?

Some characters don't have 'job' or 'exploration' as their traits, and compatibility changes with things like the second skill, so I don't think you can definitively say one character is strong. How about looking at the Lumina or support characters of strong players? Also, World Chat channel 2 has many Japanese players, and quite useful information is often shared there.