In fact, whether the protagonist is hidden or not is not decisive. The king of GALGAME is the plot. As a game with only dialogue options and pictures, the plot is the most important. The quality of the character's plot determines its position in the player's line, which has nothing to do with hiding or not. For example, Destiny's Day has two hidden strategies. One is the maid of the doctor's family, who refuses to let all the girls be with her, but how many people think that she is the protagonist, after all, she is just a funny role. After Raiders captured all the girls, my sister's story will begin. This line is the main line recognized by many people, because the story is full of twists and turns, and my sister has become the first hostess in the minds of players.

Therefore, the phenomenon you are talking about is only the subjective feeling of the player after feeling the plot of the game. Don't take it too seriously ~ ~ ~