Have you ever wondered why exactly Yui can be compared to a banana? I'll tell you why they are so connected.

Let's start with the appearance. I will compare Yui to banana Pedro from My Friend Pedro.
So, the external component:

- They are united by two colors - yellow
-Both have a red spot, but in different places (places shown with red circles)
- They both smile in games
- Crazy


And I will explain the last point in the next section.

Let's move on to the madness item. It was not for nothing that I called her a banana, because there is an idiom in English "go bananas" which translates as "go crazy". And if you compare Yui and Pedro, you can conclude that they are insane.
For example, Yui is insane in a dream because of the murders, she literally went crazy from the massacre (the blood on her clothes is proof of that), plus she mocks the victims. But her personality outside of sleep is adequate, judging by the animation "Saiko No Sutoka Animated part 8 : Rain", but in this guide we rely on events from the game.
Pedro is the imagination of the main character, forcing him to kill enemies. Unlike Yui, the protagonist and Pedro had a goal - to eliminate the main character's family, which was the mafia, and the character does all the dirty work, and banana only orders to kill. Judging by the pop-up words near the enemy at the moment of his death, for example, "think faster" when we throw an object at the enemy's head, it can be assumed that this is how the banana mocks its enemies.The protagonist is slowly going crazy because of the murders of enemies and family members. In the end, Pedro decides to defeat the main character, but the protagonist defeats the banana, thereby becoming a banana himself, that is, insane.
Here is an example of the above:

My conclusion is as follows. Yui and Pedro are similar both externally and internally. Therefore, Yui is a banana, that is, crazy.

Honestly, I wrote this guide for fun, I don't know, maybe someone will like it. Anyway, this is my first guide, albeit a stupid one. I am waiting for your opinion in the comments. Have a nice day :)