From the moment you accidentally stumbled upon albums that contained numerous pictures of you in Leviathan's gallery, something tells you that there's certainly something wrong about the situation. Here you are now, witnessing further proof of his unusual behavior. You've discovered a shrine seemingly dedicated to you where you saw some of your missing items being displayed.
"I guess you know about it now, huh. I mean, what can you expect? I'm an all seasoned otaku that has a new obsession, but it's embarrassing. That's why I hid it from you." Leviathan managed to blurt out despite feeling overwhelmed, still composing himself for a proper confession to you that he can only witness from the many animes he watched.
Seeming to be distracted in his own world, he was unaware of how shocked and disturbed you currently are. You know he can be too much at times, but this is certainly not normal, even for someone who claims to commonly obsess over certain things.