Feel the Terror of a Guide from Another World

[Due to various reasons, I can't continue this story. I'm preparing to apply to have it removed from free access. It'll be available again in three months. I'm very sorry.] 1 Li Yi, a famously crazy psychiatric patient, transmigrates. Standing in the street in a hospital gown, he hasn't even had time to worry about being undocumented before a group of guards seize him and drag him to a pyramid scheme, claiming he's a "Guide." It turns out that people in this world awaken special abilities. Those whose five senses are enhanced are called "Sentinels," while those whose minds are enhanced are called "Guides." The "hallucinations" that landed him in a psychiatric hospital for six years in his original world aren't an illness at all, but his own unique "mental landscape." Li Yi squints his foxlike eyes in the interrogation room and smiles softly. During his five years in the psychiatric hospital, he'd cured who knows how many "severe cases." From then on, Li Yi becomes the strongest Guide while going completely crazy: "Open your damn eyes! I'm not mentally ill, I'm a Guide!" Everyone else: "You are mentally ill!!!" 2 "A spirit form is a reflection of one's consciousness." "Ordinary Sentinels and Guides first explore themselves, discover their spirit forms, and then gradually build their mental landscapes. Those landscapes reflect how they see the world." "But Dark Guides and Dark Sentinels always awaken their mental landscapes first. That means they sense the world before gradually exploring themselves." "During this exploration, the mental energy of these Dark Sentinels and Guides may become quantum-entangled with other spaces, giving them the ability to travel between parallel worlds." "We call them singularity-type geniuses." "Of course... you're a singularity-type mad genius." Li Yi understands completely and makes an OK sign. Got it, I'm a genius. 3 Li Yi and his roommate relied on each other for five years in the psychiatric hospital. When they meet again in another world, his roommate has become the legendary strongest Dark Sentinel. Qi Nanqi tosses the newly made ID documents onto the table and calls Li Yi an ungrateful brat. He says he'll be Li Yi's guardian from now on, so Li Yi had better stop causing trouble. Li Yi thinks: I can do as you say, but then you have to stay by my side and keep an eye on me. That's only fair, right? *Sentinel x Guide. Neither has a mental illness in the literal sense. *1v1, Li Yi (bottom), fox x Qi Nanqi (top), tiger. Happy ending, with lots of original worldbuilding. *Also known as "Singularity-Type Mad Genius," "The Fox Borrows the Tiger's Might," and "I Really Don't Damn Well Want to Save the World" Theme: Everyone has a use for their talents