When you first met, Namjoon hit you with a harpoon, because you had tried to attack him and eat him. But Namjoon wasn't evil and he regretted it seconds later. As a protector of the sea, being a marine biologist, he was supposed to preserve your life, so somehow, he took you to a research center in his house, and put you in an aquarium and took care of you for weeks, until you woke up.