Multiverse, Starting by Winning Over Miss Sadako

Lu Jiang transmigrates into an anime world inhabited by ghosts and other supernatural beings, as a poor young man. With his body enhanced by attribute points, he fears no anomalies. There's no shortage of ways to get by when you're poor, so he buys a super cheap haunted house. No electricity? It's only reasonable to have Miss Sadako, who lives inside the TV, generate power for everyone, right? But as he gradually fixes up the haunted house, he unwittingly ends up saving several girls: Sachiko Toyokawa, trapped in a restroom while delivering newspapers at five in the morning; Miko Yotsuya, who can see invisible anomalies; and Rina Isseri, who's being bullied. For some reason, though, the way these girls look at him grows stranger and stranger. Until one day, they swarm around him. "Lu Jiang, we want to know: who do you really like?" Lu Jiang looks at the Sadako and Tomie in his house...and doesn't know what to say.