/jp/ - Otaku Culture

Tamaki case is a series of small mistakes piling up until it made a catastrophe.

As said, if she was not an osananajimi main heroine she would end as an unremarkable sub-character and nothing of value would be lost.

The game went an extra mile to show how deep in a relationship is with her boyfriend showing in CGs her boyfriend kissing and groping her, and showing several times in the exit of a love hotel. By all means this was unnecesary for the narrative and shows how much willing élf shoot in his foot.

Tamaki herself is kind of a ビッチ. The MC is supportive toward Tamaki and her boyfriend relationship and does not proceed with the aim of stealing her back. Tamaki herself ask for dates with the MC, despite she having a boyfriend AND getting caught several times by him. When the MC asks if is ok to keep dating after getting caught by her (understandably) angry boyfriend she says that is all right.
The last time MC and Tamaki get caught meeting, the boyfriend picks her and in front of a love hotel breaks with her.
The boyfriend is a nice guy and wishes her well even after seeing her girlfriend cheating him with her osanajimi friend several times.

After a few days, the MC becomes the rebound guy and during sex she reminds him how much she loved her previous boyfriend (a medecine student with an sports car) but sex with MC feels better.

If I recall correctly near the end of her route she talks about a childhood promise to marry the MC, adding even more fuel to the fire after she seemed to not care until that point.

In summary, it was not élf trying to be original breaking the molds of a stagnant genre, it seems like an internal boicot to make the main heroine as much unlikable as possible.