How Did This Tsundere Hothead Get Tangled Up with a Creepy Puppy?!

[Two male leads + Spoiler-filled comments + Past and present lives] Clingy, gloomy ghost top × Tsundere, hot-tempered ghost-hunter bottom There are two things Lin Tinghuai hates most in this life: First, ghosts. Second, people who take liberties with him. Then he wakes up one day with a teenage ghost clinging to him. The ghost presses close, all damp and gloomy, eyes reddening. “Huaihuai, could you hit me again?” Lin Tinghuai: ??? A string of mysterious characters drifts overhead: [Huaihuai, maybe don't hit him. This guy's the Ghost King, and he enjoys it] [A thousand-year-old ghost pretending to be pitiful. Baby, wake up] Lin Tinghuai: ... The dignity of a ghost-hunting master tells him he has to capture this ghost! Later, Lin Tinghuai discovers that the ghost can't be captured at all. He hunts ghosts, while the ghost sticks close and rubs against him. “Huaihuai is amazing.” He gets hurt, and the ghost charges out like a madman to tear his attacker apart, then returns with red-rimmed eyes. “Who hurt you...” He looks at someone else for a moment too long, and the ghost turns pitiful. “You don't like me anymore, do you?” Fed up, Lin Tinghuai raises his hand and slaps him. The ghost holds his cheek and smiles like he's struck gold. “Huaihuai hit me. He really does love me most.” Lin Tinghuai: “...You're sick.” The ghost nods earnestly. “Mm. A thousand-year lovesickness.” Comments flood across the screen overhead: [Damn, this lunatic is beyond saving] [Huaihuai, you'll get used to it. He was even crazier back then] [Huaihuai should just kiss him. I guarantee this guy will ascend on the spot] Lin Tinghuai: ... Looks like he really can't shake this ghost off. Combat powerhouse bottom × hopelessly lovesick lunatic top