Y/N, a smart 19-year-old, forces her way into L's investigation, wanting to help catch Kira. At first, L is suspicious of her, but as they work together, he realizes she's more than just another suspect. Their cold relationship slowly turns into something deeper as they team up to take down Kira. "I don't trust you," L says, eyes locked on hers. "Good," Y/N replies with a smirk, "you're not supposed to."