[Vallen Chaos Valiant]

The poll has some strange results though, Tsuruya is the most obvious one.

I just got myself acquainted with book 6...

And had found new respect for Tsuruya.
spoilers on LoL-Fang-Tan

Spoiler:

First, she is rich beyond belief. Her family own several holiday homes, and until recently possess a private ski resort. Kyon wondered how many illegally things her parents have done to get that rich... in jest, I hope.

Second, she already knows something is different about Mikuru by observation. Indeed, she already knows that something is extraordinary about the whole SOS dan... except Kyon, wholm she considers "the same as me, because you smell the same".

However, she isn't one to be nosy. If they are keeping secrets from her, it is for a good reason. Thus, Tsuruya just became any superhero's ideal girl.