You're Reisen Udonge, a lunar rabbit which has recently arrived in Gensokyo. Your mistresses have charged you with protecting Eientei from all intruders, and they also told you that Eientei was hidden from humans and youkai. They were planning something.

Suddenly a swordmaster girl with silver hair and green eyes breaks in, you decided to stop her before she notices that your master is the culprit She stares at you and says with a serious expression

"And who you might be?"