I'm good enough to get to the end of a palace in a day with enough SP to last and can take some of the bosses. I'd be fine if it was get to the end of the palace then take the next day to go beat the boss but it's do the palace, day 1, send the calling card, day 2, beat the boss, day 3. Why does getting ready for a boss fight have to take 2 game days in a game where doing all the Confidants and leveling social skills is already hard?