A
Day 1 - I rush to the spellcasting building + a chest for experience + planting (This day is the planting day)
The next day after landing, I finished the game. That is, I cleared all the settlements and messengers. So, were you wasting an extra day on the messengers?
Added after 3 minutes
In total, 1 castle (no villages for the computer) and 3 heroes were captured.
Also, in short, how many days did you take? 13 days? :)