Aren't We Supposed to Do Dungeon Quests? How Did We End Up Dating?

Dual male leads, one-on-one romance, both strong, both devoted, infinite flow, ensemble cast, mildly scary (?) Supernatural abilities. There is a world System, but no personal System. Secondary couples. Reality and dungeons alternate. Calm, seemingly gentle but secretly unhinged bottom x theatrical, fun-loving, genuinely clingy and prone to wild assumptions top Wen Lanqing x Lu Linyuan (At the start of the story, Wen Lanqing is invincible without realizing it.) The first dungeon suddenly switches to kill mode in the middle of the night. Someone discovers that the boss was killed right outside Wen Lanqing's door. The survivors ask him, "What did you do last night?" Wen Lanqing calmly replies, "Slept." During a chase in the second dungeon, most doors are forced open, leaving nowhere to hide. But one room remains shut, and someone knocks, asking for help. Wen Lanqing, woken by the noise, opens the door and asks, "Do you want to come sleep in my room?" Lu Linyuan, hiding among the crowd: Wait, that's an option? In the third dungeon, Lu Linyuan drops the act and tries to take Wen Lanqing off for some quality time together, but the clueless NPCs forcibly separate them. Lu Linyuan: What am I supposed to do with that? Worldbuilding The setting is divided into the real world and the dungeon world. People in the real world call those in the dungeon world NPCs, while people in the dungeon world call those from the real world players. To the people in the dungeon world, players are outsiders. To people in the real world, NPCs are monsters. The dungeon world has rules that players absolutely cannot disobey. Breaking them can trigger forced kill, chase, or other modes.