The Haunted Mansion's Secret (Soukoku Halloween special)

On a chilly October evening, Osamu Dazai and Chuuya Nakahara, two skilled ability users, find themselves investigating a mysterious Victorian mansion on the outskirts of Yokohama. The pair are tasked with uncovering the truth behind supernatural occurrences and the disappearance of Port Mafia members in the area.
As they enter the eerie mansion, the atmosphere quickly turns sinister. Dazai, ever the mischievous partner, suggests splitting up to cover more ground. While exploring separately, Chuuya encounters an unseen force that drags him away, prompting a frantic search by Dazai.
This is the first horror, and romance, I've written so hopefully it's good