'Tutorials' is the section where people who have made a tutorial can share it with others. "How do I....?" questions go in the Support forum for the engine you are using.
[move]RPGMaker MV[/move]
I think a bit more detail would help. Can you describe exactly what it is you are trying to do.
It does occur to me that if it is the player that is following an NPC, then presumably you are directing the NPC to move somewhere. You do that by having a controlling event (often set top left corner of the map so that you can find it quickly) using the Set Move Route command on the 2nd tab of the Event Command Menu. Uncheck the Wait box, otherwise nothing will happen until the NPC reaches its destination. Then - in the same controlling event - use the set move route command to make the player follow the same route.
I think you would find it helpful to go through Andar's compilation of
info for new users. In particular, he gives a link to a playable tutorial on Event commands. Spending a bit of time on this now will save you a vast amount of time and frustration in the future.