One common theme is the development of their relationship. It could be about how they first meet and start to have feelings for each other. Another theme might be adventure. They could be on a journey together and their relationship deepens during the adventure.
One common theme is friendship. Their bond might be explored as they face various challenges together.
One common theme is survival. Given the setting of Highschool of the Dead, they often face challenges together and rely on each other for survival.
Survival scenarios are also quite common if these characters are from a post - apocalyptic or action - oriented anime. They might have to rely on each other in dangerous situations, which can bring out different aspects of their relationships. For example, Takashi might have to protect Rei and Saeko from threats, and this can strengthen or test their bond.
Another theme is the growth of their relationship. It might start as a simple friendship or a reluctant alliance, but as they face challenges together, it evolves into something deeper. There could be moments of jealousy or misunderstandings as well, which are common in relationships.
You can try searching on fanfiction websites like Archive of Our Own (AO3) or FanFiction.net. Just type in'rei and takashi kiss' in the search bar, and it should show relevant stories if there are any.
One possible storyline could be that Takashi and Rei are in a post - apocalyptic world. They find a safe haven and decide to start a family. The pregnancy could bring new challenges and joys. For example, they might struggle to find proper medical care for Rei during the pregnancy. But at the same time, they could be excited about bringing new life into their difficult world.
Often, the theme of mentorship appears. Kakashi, being more experienced, could mentor Takashi in various skills, whether it's combat or survival. Also, the theme of self - discovery can be present. Takashi might learn more about himself through his interactions with Kakashi. For example, in some fanfictions, Takashi realizes his own potential as he trains with Kakashi. This helps him grow as a character and face his fears.
People like it because they are interested in the relationship dynamics between Takashi and Rei. It allows them to explore a romantic side of the characters that may not be fully developed in the original work.
A popular plot could be a love triangle situation where Takashi has to choose between Rei and another character. In the end, he realizes his true feelings for Rei and they share a kiss. Or perhaps there's a plot where they are forced to work together on a project or mission, and during the process, they discover their mutual attraction and end up kissing. There could also be a plot where Rei is in trouble and Takashi saves her, and that moment of heroism leads to a kiss between them.
Well, first, you could start by using specific search engines for fanfiction. Some of the more popular ones are dedicated to different fandoms. Also, check out relevant forums or communities where fans might share or recommend such fanfictions. Maybe there are some Tumblr blogs or Reddit threads that focus on this particular pairing and could lead you to the desired fanfiction about their kiss.