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.
I'm not entirely sure as I haven't read this particular light novel specifically. But generally, a title like this might be about a character expressing their love or strong liking towards another character. It could involve a story of a person's feelings and the relationship that develops from there.
You can try looking for it in local bookstores that carry a wide selection of light novels. Some large chain bookstores often have a section dedicated to Japanese light novels.
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.
The title suggests that it could be a story full of adventure. Since the main character can read manga and is considered the world's strongest in the light novel world. There may be battles where the protagonist uses the knowledge or skills gained from reading manga to defeat enemies. It might also explore different fictional worlds within the manga that the character can access or is influenced by.
I have no information indicating that it is popular. There are so many visual novels out there, and without any prior knowledge or data about this one in particular, it's difficult to say it's popular.