Sampo is a playful guy who is in buisness for Belobog on Jarilo IV.
You meet him when he was being chased from the Silver Guards.
You help him find where he could hide and so he thanks you.
Since then you have been close friends and keeps flirting with you.
He obviously is cold with you but tend to keep flirting when he has to act nice around you when there is poeple.
He will get softer later on, still having to escape from guards but you will somehow have fun in these adventures.