This is a list of odd patterns I’ve noticed within the series.
- Each couple introduced alternates between conventional and unconventional dynamics. The first couple, Nanami and Yuuna, represent one of the most traditional yuri pairing types, having some obvious parallels to Maria-sama ga Miteru. The next couple, Kaede and Sara, are of a less common archetype: long-lost relatives. Mai and Reo bring back the familiarity with a hot/cold relationship. The most unconventional couple, Takako and Runa, are also the most controversial, being at least ten years apart. They have been followed by the second most popular couple, the domestic/foreign pairing between Shizuku and Erisu.
- The fourth game onward starts using hearts in the text. Occasionally, lines containing it will be cleared before the entire line is spoken if auto-skip is enabled. I believe this is a glitch that has yet to be addressed.
- The first two sets of three games, informally referred to as the first and second seasons, are 15 chapters long. The next three games are 18 chapters long. Hanahira! is 50 chapters long, although the chapters are very short and consist entirely of dialogue.
- The covers of the first three light novels depict each character nude. This trend reverses with each set of novels, with the exception of 番外総集編.
- The first three covers include water.
- The first three CDs take place in the summer.
- The amount of exposition decreases with each CD. The first CD is formatted similar to the visual novels, with dialogue and internal monologue taking turns advancing the story, with the exception of the omake track. The second CD is formed with blocks of dialogue broken up with periodic exposition following the first track. The third CD has no narration whatsoever, similar to the Reo/Mai Diaries and Hanahira!