Quick Transmigration: The Unhinged Host Has a Filthy Mouth

[One-on-one romance, with a couple, both pure, happy ending] Jing Luo was a female mermaid. In pursuit of an immortal soul, she came to the land alone. After a century of trials, she finally turned into foam, and her soul became immortal... But just then, a caterpillar named A Long appeared and trapped her inside a giant bubble. It even tempted her with an immortal body, hoping to make a contract with her. Jing Luo had intended to refuse, but the other party was offering far too much! She had no choice but to agree to the proposed bond. Watching Jing Luo's personality change completely the moment they were bonded, A Long silently lit a candle for himself... Oh well. He had chosen this Host, so even if he had to do it on his knees, he would see the partnership through! Sob, sob...