Level 0 Intel
The sisters Satori and Koishi Komeiji are both satori youkai, a species of youkai with the ability to read other people’s minds.
However, Koishi, the younger of the two, has sealed her ability away.

Level 2 Intel
Satori is able to read people’s minds, but she chooses to hide away in the Palace of the Earth Spirits and avoid contact with others. On the other hand, Koishi, who has closed off her mind and acts unconsciously, is known to wander freely, even around Gensokyo.
Based solely on their appearances, you would assume it was the other way around. It seems you really can’t judge a book by its cover.

Level 3 Intel
Who’s to say which brings greater happiness: being so sensitive and attuned to the world around you that you can read people’s minds or closing off your mind and interacting with others unconsciously?

Level 1 Intel
All things considered, Satori and Koishi get along well and are very considerate of one another. What’s more, their interest in Gensokyo is growing, and it seems they’re both finding their own unique ways of making friends there.
Perhaps they can find happiness in their sisterly bonds.

Level 2 Intel
Happiness is perhaps not as far away as you think, and it may even be hidden in the bonds you share with the people you care for. Satori and Koishi may seem different at first, but the closer you look, the more similarities you stumble upon. May they find happiness and bask in its glow forevermore.