After that it asks you a bunch of question that you would have done in the intro and off you go.
BTW any save file would do. I just skipped the introduction by holding down PageDW and just saved in the apartment (once I gained control).
TL DR: That is great and all, but apart from quickly checking out each classes advantages and disatvantages (plus hair color) I strongly advise anyone who seriously wants to complete the game to not chose that option.
Lengthier explanation/rant: The demerit of "You will not receive any of the experience from the slime boss" or rather not killing all the slimes in that beginning sewer is a
serious deal breaker very annoying when it comes to this game. Even receiving fewer pain killers is, though more minor compared to losing out on exp, still a big problem in the early game. This is because gaining level ups is important (specifically the stats that come with it) and every single level-up counts, because the game is not easy if anything else. Also, you gain exp really slowly, you have to grind like a dog and kill a boatload of health sponge enemies before you level up.
This wouldn't be a problem if you could farm continuously respawning mobs all in one time-slot somewhere on some map, but you
can't. There are limited amount of mobs in each zone and it takes a day to replenish them, and days are limited. You can't use days just to farm exp and level up, there are plenty of other more important stuff in other non-combat places where you can acquire serious stat boosts and you also need a time slot to fuse with the soul fragments of the bosses you defeat.
Also, you can't take your time, you
need to get stronger because you need to kill mission bosses before the arena fights whose dates hang over your head.
Basically, my complaint here is with the mobs, they are merely padding in this game which you are forced to kill and add nothing else beyond that. I think most that play this game would approve if the mobs were seriously reduced in amount and new ways to level up in the game be introduced. Because even if you aren't playing the game just for porn anymore, you certainly aren't here for the bog standard RPGMV combat.