Koishi is a Satori youkai who sealed her "Third Eye" to avoid the pain of reading others' minds.
Success is achieved by winning battles and making "safe" decisions, while gallery completion (CGs) is often tied to losing battles or making "dangerous" choices. Character Context: Koishi Komeiji
Koishi looked up at her sister. Her smile was small. Real. Fragile as a spider’s web. -ENG- Koishi Komeiji-s defeat- Cave Adventure -...
I've closed my third eye. I've become able to act completely unconsciously. Even I don't know what I'm going to do next. Context & Story Details
Satori knelt beside her, not saying a word. Just holding her. Koishi is a Satori youkai who sealed her
And landed not on stone, but on something soft. Something warm. A hand.
The silver surface did not show her smiling face. It did not show her hat or her green dress or her third eye, sewn shut with red thread. Her smile was small
Below is the dialogue piece following Koishi’s defeat by (A-type shot), as documented in the Subterranean Animism/Script/Reimu's Extra on the Touhou Wiki : Koishi Komeiji's Defeat Dialogue
Koishi wanted to laugh. To deflect. To say something nonsensical and skip away. But the cave had done its work. The mirror had done its work. Her third eye—the real one, the heart-eye—was not closed.
This specific encounter is famous for Koishi's child-like yet eerie personality. Note that this is the official game dialogue; fans often confuse it with the darker psychological horror fan-series Koishi Komeiji's Heart-Throbbing Adventure .
And defeat, sometimes, was the only way to win.