The Honest Man Gets Tangled Up with Nonhumans [Quick Transmigration]

Lin Huan was a beta office worker. He did his part, working 996 and earning a paltry salary every month, until his company suddenly transformed into a quick transmigration bureau and asked if he wanted to keep working. Lin Huan: ...As if I have a choice. Things are so bad out there. I'll just make do. He opened the new work file: tentacles, snake demons, vampires, merfolk, alien species, zombies... The huge title in the center read: "Worlds Where You Can't Leave Unless You Do It with a Nonhuman~" Lin Huan snapped his laptop shut. Maybe he should find a different job. 1. Snake-person roommate x human college student Lin Huan's new college roommate was strange. He was always on his own and barely spoke. Even though they shared a room, he never paid Lin Huan any attention. Lin Huan decided to use the simplest method to get along with him, like scrubbing his back while they bathed or something. He stepped into the hazy steam, completely unaware of the danger. "Your body wash smells pretty nice." The next second, a cool black tail wrapped around his waist. Only later did he learn that this was the snake person's month-long breeding season. 2. The last pureblood merperson in the universe x an employee at an interstellar zoo "Will you lay eggs for me?" the little merperson, who would later become the Merfolk Emperor, asked. 3. Haughty vampire x vampire hunter whose only weapon is garlic How can an idiot be a vampire hunter these days? Have a taste. 4. Sealed thousand-year-old great demon x ordinary young scholar on his way to take the imperial exams (ancient setting) "But I can't stay with you for a thousand years..." "Shut up." 5. S-rank dangerous test subject x low-level research assistant These are healthy experiments. Please put your clothes on, and... no using your mouth on the research staff. 6. ABO apocalypse, A x B A lone-wolf alpha can't control his zombification at night, so a healing beta purifies him in the most hands-on way possible. The order of the little worlds is undecided. I'll write whatever comes to mind, and add more as inspiration strikes. 1. Extremely oblivious, honest, straight beta bottom x sensitive, suspicious, dark and crazy nonhuman top The top is the same person from beginning to end. 1v1, happy ending. 2. The bottom has a harem-protagonist aura, but doesn't know it. The top is jealous. Theme: Work hard and help others