SSSooo school started a 9 pm and you work till 5 am. It is daylight when you finish work at school, then you want to sleep but you could not during daylight ...You become insomniac with big big circles under your eyes like a bigmac =__=
You put a moustache on Yuuka's face or write as your signature "I am a boy not a girl dont get confused by Yuuka's avatar and my girly sounding username". So people stop thinking that you are girl althought you have Yuuka-chan as avatar.
You got that Magic Clock from Harry Potter (Giratiempo in Spanish) and you can do a lot of things, but Yuki likes that clock and knocks you down to steal it.