After months of pestering from Ran, Yuki finally gave in when they employed Chen to get him to do what he needed to have his own Shikigami. It was known that he has a really hard time saying no to Chen, especially when she gives him "the sad puppy eyes". Her first action after Yuki was to try to force him to clean up his "room" after Yukari asked her to make sure his room and pocket dimension were both clean and to watch over him like a good shikigami. Neither she nor Yuki were aware of the order stipulation of being a Shikigami. Kome learned of it before Yuki did when he refused and told her "It is clean, look for yourself and if it's not clean enough for you, clean it yourself." She obeyed, but to Yuki it was her not wanting to bother making him clean his room to avoid bickering which was partly it. After making sure his room was clean as he hadn't put away his futon and his sheets were scattered on the floor, She dragged Yuki into his pocket dimension where she learned why no one was ever able to find Seija Kijin, but was hit with another order to not tell anyone about Seija being there. His pocket dimension was perfectly clean, but it bothered that the Amanojaku was allowed to live within his pocket dimension instead of being outside in Gensokyo, but due to the order the only one she could speak on this to was Yuki.
What Kome is exactly, isn't known to any, but herself and presumably Wakasagihime who watched her take down a man eater youkai and eat it.
Who I'd like to meet: "I will only say this once, off you go. Sparing you what you reap from what you sow. I am my sir's first line of defence, and I just can't let you through. You intrude at my loved one's expense, so what am I to do? Tear you up and i'll take you down. I'm a spiral pulling you under. Tear you up and i'll spit you out. Like a lightning arrives from the thunder you've called..."