When I talk to Blight in 2.0.1 it’s like a picture and there’s a bug where I can’t do anything.
*edit - Talking to all NPCs, as well as Blight, results in an error in the dialogue window.
According to the wiki, if Ryoko’s request to lock her elder Thunder girl in a room is successful, she will give you an item to have sex with “Dr.Blight.”
Given Masuo’s apartment is mentioned here as a place to lock up Thunder Girl in a room and the “Mayscape Apartments” place to be added to the next update, that opportunity is likely to arise in the next update.