The protagonist is surely an important character. His inner world forms the core of the story, so understanding his personality, motives and growth is key.
Another theme could be the struggle with one's own psyche. In the light novel, the character may face various internal challenges that are symbolized as 'dangers'. For example, dealing with insecurities, fears or unacknowledged desires. It's like a battle within the heart.
I'm not aware of any show named 'Crunchyroll My Love Story' on Crunchyroll. It could be a fan - made title or something that is not an official show on the platform.
I'm not entirely sure specifically about 'Crunchyroll My Love Story' as it could be a rather specific or user - created title. It might be a love story related to the Crunchyroll platform, perhaps a user's experience of finding love through their shared interest in anime or other content on Crunchyroll.