One possible theme could be unrequited love. The title gives the impression that one character has feelings for another who might not be aware or reciprocate right away.
I'm sorry, I'm not very familiar with this light novel specifically. But generally, a light novel often has unique characters and an interesting story. It might be about some kind of relationship between the characters where one has an unexpected or special feeling towards the other as the title seems to imply.
I'm not sure specifically what this 'ore wo suki nano web novel' is about as there could be many web novels with this title. It might be a story about someone's love or affection (since'suki' means like or love in Japanese), perhaps from the perspective of a male character ('ore' can mean 'I' in a masculine way).
I'm not certain where you can specifically find 'ore wo suki nano web novel'. You could try searching on popular web novel platforms like Webnovel or Wattpad. Sometimes these platforms have a wide variety of novels including those with Japanese - inspired titles.
I'm not sure specifically as there could be many light novels with that title or a similar name. It might be a story about a character's love or affection ('suki' means like or love in Japanese), perhaps about the feelings of a male character ('ore' is a somewhat rough way to say 'I' in Japanese).
Online platforms like Amazon might have it. They have a wide range of books including light novels. You can search for it by the exact title 'ore wo suki light novel'. Another option could be to check some specialized Japanese book import websites which often have a great variety of light novels.
I'm not sure specifically as I haven't read this novel. But 'ore' means 'I' in Japanese, and 'parry' might imply some kind of defensive or evasive action. It could potentially be about a character who claims to be able to parry all things, perhaps in a battle or challenging situation.
You could start by looking in local libraries. They often have a diverse collection of novels, and if they don't have it in their physical inventory, they might be able to order it for you. Also, some specialized Japanese bookstores, either physical or online, could be a good place to search. There are also some e - book platforms like Kobo or Google Play Books that might have it available for download.
One popular 'ore dake haireru light novel' could be 'Overlord'. It features a unique story where the main character is transported into a game world and has to navigate through various challenges with his overpowered abilities. Another could be 'Re:Zero − Starting Life in Another World'. The protagonist has the ability to return by death, which makes for a very engaging and complex plot. There are also many other great ones in this genre that are loved by fans all over the world.
One possible feature could be a unique dungeon setting. Since it's a hidden dungeon that only the main character can enter, it's likely to have its own distinct layout, with different areas having different challenges.