Chiaki Nanami is a Gamer Chick who geeks out whenever someone recognizes the game she is playing but is no less adorable.

Chisa/Juzo and Juzo/Ruruka both lost a lot of followers once Juzo was revealed to be gay and in love with Munakata.

Even some of those left on the ship after that jumped when Side:Despair Episode 11 had her derogatorily refer to him as a 'loser'.

Some who were on board with the Makoto/Mukuro ship as shown in IF jumped ship once Mukuro executes the Cold-Blooded Torture against Chisa.

Episode 9 gave some support back however, due to showing that Izayoi really loved her, and basically indicating that Andou really did love him back. It's worth noting that in this case it's very much Alternate Character Interpretation however. This has left a lot of fans seeing them less as a caring couple and more as a Manipulative Bastard controlling a guy who's had an addiction since childhood.

The Andou/Izayoi ship lost a lot of fans with The Reveal that Andou murdered Izayoi and the possible implications that the candies she's been feeding him are capable of mind-control.

The Reveal that Enoshima had brainwashed Tsumiki, combined with the very disturbing depiction of their relationship, basically shot down the pairing's popularity with a harpoon.

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