Immersion and gameplay

Apparently there haven't been many changes to the game since I first joined, "PKO" is a great game but hasn't undergone significant updates in a long time. The system of buying and selling items between players "View Stall" is well outdated, we also have problems regarding life recovery and sp the game does not have NPC that sells items with life recovery only the cakes, there should be npc seeing blood potions and mana potions to make the gameplay better, Could. The current system of buying and selling between players overloads the game causing several afk players overloading the servers and making the game heavier, when teleporting to the city you notice a "LEG" justified by the number of AFK characters selling items, there should be an "NPC" where we can offer the items and other people can buy.

Solutions:

Selling items between characters: Create an NPC so that players can offer their items and others can buy them. (This would help with the overload of the service)

Health and Mana Recovery: Deploy NPC that sells health and mana portions (This would help gameplay) Kitchen items could be health and mana recovery items for high levels since they have a high added value.