I'm a depressed otaku worker who fapped himself into another world

so the title of this novel is actually too long to for this dumb site so the actual title is "I'm a depressed office worker who fapped himself another world where monsters try to rape you but that's ok because you have a badass succubus sidekick!" anyways this story is about 21 year old Domen Hikaru who after coming home from a long day at work just wanted to have a little fun with himself you know bust out the ol' porno mags suddenly finds himself summoned to a mysterious world where three succubi have summoned him he doesn't really pay attention to why he's there because well how would you feel if you were surrounded by three big breasted lustful succubi!