One common theme is friendship evolving into something more. Writers often explore how Kazu and Haru's relationship deepens over time, from just being friends to having romantic feelings. Another theme could be adventure. They might go on adventures together and through those experiences, their bond gets stronger.
Well, some kazu x haru fanfiction might be found on FanFiction.net as well. However, the quality can vary a lot. You should look for stories with high review scores and a lot of favorites. Maybe start with the ones that are recently updated, as they are more likely to be ongoing and engaging.
Kazu Kibuishi's graphic novel series usually has unique art styles and compelling storylines. The characters are well-developed and the settings are richly detailed.
The characters in the light novel could be extremely well - developed. Each character might have their own goals, dreams, and flaws. Their growth throughout the story can be very interesting to follow. For instance, a character who starts off as shy and timid might gradually become more confident and assertive as the story progresses, which is a very satisfying arc for readers to witness.
I'm not entirely sure which 'shin no nakama light novel' you specifically mean. There are countless light novels out there. If it's a relatively new one, it might be a bit harder to find reviews or detailed information right away. You could try searching for it on some light novel fan forums. There, fans often discuss new and interesting light novels, and they might be able to give you more insights about this 'shin no nakama light novel'.
One theme might be personal growth. In the fanfiction, Haru and Kazu could be depicted as growing as individuals and as a pair. For example, Haru might overcome his shyness with Kazu's help, or Kazu might become more patient. Also, the theme of teamwork can be prominent, as they are part of a cheerleading team. They might learn to work better together and rely on each other's strengths to achieve their goals in the fictional stories.
You can try looking on fanfiction platforms like Archive of Our Own (AO3) or FanFiction.net. These sites usually have a wide range of fan - made stories, including ones about Cheer Danshi Haru x Kazu.
Well, without having read the 'gacha wo mawashite nakama wo fuyasu light novel', it's hard to say precisely. But given the words 'gacha' which is often associated with random item or character acquisition in games, and 'nakama wo fuyasu' which means to increase comrades or friends, it could be a story set in a game - like universe where the protagonist uses gacha to build up a powerful team of friends or allies to face various challenges, be it in battles, quests, or just surviving in a strange new world.