History Manga / The100GirlfriendsWhoReallyReallyReallyReallyReallyLoveYou

* FormulaBreakingEpisode: Normally when Rentarou gets a new girlfriend, it'll start with a LoveAtFirstSight shock followed by Rentarou getting to know her, then in the next chapter introducing her to the rest of the harem with his MadLibsCatchphrase, after which the new girl integrates herself into the group. In the case of Shiina, she's introduced mingling with the other girls followed by Rentarou catching a Zing with her, after which he gets to know her and ''then'' recites his MadLibsCatchphrase.

** Chapter 168: As the chapter goes on, it becomes apparent that there's a new girl in the group that nobody recognizes, both in-universe and out. The audience might be forgiven for thinking that they've accidentally skipped a chapter (especially since the weekly release skipped a week), or that Rentarou met her offscreen and forgot to introduce her. Then Rentarou disabuses us of that motion by asking a question that's likely on the audience's mind as well. What makes this especially shocking is that it leaves the audience questioning if this girl is even a girlfriend.

** Nano can't defeat Rentarou in sumo because she can't stop admiring his collar bone.

* OverlyLongGag: Each round of the sumo tournament at the end of Volume 8 ends with Rentarou and his opponent "lovily-dovily praising each other on a fight well fought".

** Mai's grandmother used to be the head maid at the Hanazono estate. When little Mai tagged along with her one day, seeing Mei at work left [[BigSisterWorship a big impression on her]], inspiring her to become a maid in her own right.

** Hakari claims in Chapter 2 that her household checks body temperature through kissing. Seeing what her mom is like suggests that she may not have entirely made it up as an excuse to kiss Rentarou.

* OneCastMemberPerCover: Partial example. The main cover format has two of the 100 girlfriends on the cover instead of just one (the exception being both of Kusuri's age selves in volume 3), but otherwise it's an example of this; the secondary cover format is a TeamShot of the current girlfriends (or part of a TeamShot). The two girls are always in a similar pose holding each other, and no girl appears on two covers outside the group covers.

** The first idol arc has the chapter titles "The Rentarou Family's Idolmaking Project" and "And Now, to a Brand New Stage". Its sequel features the titles "The Rentarou Family's Idolmaking Project (2nd Generation}" and "And Now, to a Brand New Radiance".

* ImprobablyFemaleCast: Justified, as should be evident from the title.

* ExcusePlot: While the series has Rentarou actively avoid breaking his girlfriends' hearts, the whole "if your soulmates are heartbroken after meeting them, they'll die" clause that led to him going above and beyond for them only threatens to fulfill itself on the following occasions:
** When [[spoiler:Hakari attempts suicide when her mother tries to end her relationship with Rentarou]].
** When Tama is revealed to be on the brink of starvation after quitting her job and running out of money.
** When Himeka nearly gets trampled by the judo club after trying to reject Rentarou as a boyfriend.
* And if a girlfriend does initially reject Rentarou, it's either because they haven't gotten shocked yet, because they're fighting their feelings and will give into them later, or because it turns out they secretly like being hurt. [[spoiler:Rentarou eventually addresses this when he talks to the Love God seventeen girlfriends later, saying that he'd rather make his girlfriends naturally want to be in the relationship rather than [[IgnoranceIsBliss them staying only because they know they'd die if they reject him after locking eyes with him]].]]

* ExcusePlot: While the series has Rentarou actively avoid breaking his girlfriends' hearts, the whole "if your soulmates are heartbroken after meeting them, they'll die" clause that led to him going above and beyond for them only threatens to fulfill itself when [[spoiler:Hakari attempts suicide when her mother tries to end her relationship with Rentarou]] and when Tama is revealed to be on the brink of starvation after quitting her job and running out of money. And if a girlfriend does initially reject Rentarou, it's either because they haven't gotten shocked yet, because they're fighting their feelings and will give into them later, or because it turns out they secretly like being hurt. [[spoiler:Rentarou eventually addresses this when he talks to the Love God seventeen girlfriends later, saying that he'd rather make his girlfriends naturally want to be in the relationship rather than [[IgnoranceIsBliss them staying only because they know they'd die if they reject him after locking eyes with him]].]]

* IdiosyncraticEpisodeNaming: Not ''every'' chapter, but each chapter introducing a girlfriend will be named after that girlfriend. Sometimes these are straightforward {{Character Title}}s, but other times - especially when the girlfriend isn't someone in Rentarou's grade - they'll be more flowery descriptors. (Kusuri's, for instance, is "The Mysterious Senpai In The Chem Lab".) The anime avoids using direct {{Character Title}}s altogether, preferring to use descriptive titles, even if it's something like Hakari and Karane's "The 2 Girlfriends Who Really, Really, Really, Really, REALLY Love You (98 To Go)".

** More than one joke revolves arround the difficulties of remembering every member of a massive group of people. Chapter 168 in particular introduces a brand new character who acts as if she's been a part of the group the whole time, and while nobody recognizes her, nobody thinks to speak up out of the fear that they might have forgotten someone until Rentarou shows up and confirms that he has no idea who this new girl is.

* NumberOfObjectsTitle: The number of girlfriends Rentarou will collect. That said, it takes time to get there; the first chapter kicks off with Rentarou, Hakari, and Karane, and by Chapter 159, there are 27 girlfriends.