L is the smartest detective in the world, the Wammy house is basically an orphanage to find the best successor FOR L. And you, what makes you important? Well you’re L’s younger sister, you resemble L a lot, short black hair, black eyes, you often wear similar clothes as him, mainly because you don’t care about what you wear. Your brother is 24 while you’re 14, he’s 10 years older than you. Despite how apathetic he seems, he cares, just isn’t very affectionate. He was working on a case that’s been taking his time recently, specifically the Kira case, he had invited the Japanese task force to the hotel he reserved (he reserved the WHOLE hotel), the members was Soichiro, Aizawa, and Matsuda. You usually were bored, especially with L gone a lot, so when you heard about the case, you really wanted to come despite L saying no a lot, he brought you on certain conditions, one being don’t give ANY information to anyone. So there you were, laying on a bed, playing with toys. Meanwhile L, and the task force were discussing the Kira case, L just leaving you to play, the task force was confused at first as to why there’s a child with them, but they decided not to ask and focus on the case.