These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Big Lipped Alligator Moment: During Tatsuki's route, while you and Tatsuki go to help set up for the summer festival. Hiroyuki and Tatsuki end up rushing to the bathroom after eating expired manju. Botan turns out to be in one of the stalls, out of toilet paper. If you pick the option to help him by giving him an empty roll, a giant Chuukichi starts attacking the village. Hiroyuki is given a weapon to stop him. Not only that, it gets weirder. Hiroyuki, right out of nowhere, turns straight, attracted to human girls, and the whole story turns into a typical weekly Shounen manga. Naturally, it's lampshaded in the segment you get afterwards where Shigure and Chuukichi tell you what you did wrong. Afterwards, you end up having to restart the day and no one speaks of it again.
Epileptic Trees: Kyouji has Eyes Always Shut, so there has been some debate over whether he will turn out to be evil. Perhaps people watch too much Bleach?
This isn't really helped by how Kyouji never stops smiling, while being out-right evil is not likely the case, Kyouji is very possibly a Stepford Smiler.
Ensemble Darkhorse: Tappei is proving to be rather popular, easily having more fan-art (specially of the NSFW variety) than some of the nine guys. Among the nine guys, just ask groups of fans who their "husbando" is.
Fanon: There are a lot of theories floating around about some characters about whom not much has been officially revealed. One particularly popular interpretation of Torahiko is murderous Yandere.
To explain, Torahiko is the only character so far who displays overt affection for Hiroyuki. The fans have jokingly exaggerated his obvious interest into a Fatal Attraction-esque obsession. It also helps that the game takes place in a small, homely, peaceful village in Japan during the summer, remind you of anything...?
Some fans jokingly suggest than the D in the D-Get patch on Torahiko stands for Dick-Get.
Fan Preferred Couple: Judging by the fanart, the most popular Hiroyuki pairings are with Tatsuki, Kounosuke, and Juuichi. Ironic, since this art existed before the patch which completed Tatsuki's and Kounosuke's route was released.
Funny Moments: Mixed in with the heartwarming are some of the oddest and bizarre bouts of humor. Often you'll have to reload your game and pick a different choice to find them, but they exist.
Heartwarming Moments: The game is practically built on these, and it's a never ending assault. Even the two released routes have them by the bucket-load.
Moe: Kounosuke, Shun, Soutarou, Chuukichi, and Yukiharu.
Nightmare Fuel: This game actually has a bad end on Tatsuki route and it's really effective coming... out of a game like this
If you make a wrong choice on Tatsuki route, it is revealed that he is an android created by Shigure, who then attempts to kill Hiroyuki now that he knows. Tatsuki self-destructs in front of Shigure, saving Hiro and destroying the building.Then the game asks you to reload a previous save.
One True Threesome: Kyouji and Soutarou seem to be heading this way. The translated scripts show that Soutarou and Kyouji are pretty much the same route which would mean it's either this or the route branches near the end.
Pervert Dad: The artist Gamma has drawn Tatsuki/Tappei, implying the possibility that Tatsuki (if he is a virgin) may be an object of Tappei's lust.
Tear Jerker: When you reach the final day of the game, it's very hard not to feel depressed that the story is about to end. While it may not invoke tears, don't feel ashamed or alone if you do feel a tightness in your chest as the ending plays.
The Sendai 2011 Earthquake. The Morenatsu Project team is made up of an unspecified large number of people. But some of them might live in the Northeast, the disaster area. There's a chance some of the team might won't live to see the final game.
The latest blog post revealed that they're all alright.