"Man or Vampire" combat mode is turn-based combat with grids, a simplified war chess type combat. Each character determines the order of battle through intelligence, and decides which grid to walk on according to the range of attacks or skills.
In terms of plot, it gave players a surprise at the beginning. When the character you control stands up and starts to create a nickname after completing a conversation, the system will deny the nickname you entered and set a name for you. At the beginning, I was a little confused, but I will know if I continue to play. The character you just controlled is not the protagonist. It is the "angel" who is engaged in the dialogue.
Just like the name of the game, people or vampires are all under your control. The protagonist and his partner grow up in different ways. The partner can gain experience growth by killing monsters in battle. The protagonist can only grow by turning his partner into a vampire through vampire. A partner who has been transformed into a vampire will no longer be able to grow. So you need to train people and vampires reasonably in order to cultivate a strong lineup.