Fanclubs

Fanclubs are clubs for dedicating Kaede, Sia, and Nerine in the anime adaption of Shuffle!. Also, the clubs served as running gags throughout said anime. The fanclubs mostly consists of old and weird men who also pretend that they are students of the high school. They were based on real-life fanclubs in Japan.

KKK (Kitto Kitto Kaede)
Kitto Kitto Kaede-chan (aka the KKK/Knights of the Kissy Kaede) was a fanclub made for Kaede's dedication in the anime adaption. One of their affiliates is Nakabayashi. Their only "Ultimate" enemy is Rin Tsuchimi. They have no relation to the notorious hate group that use the same initials (humorously denoted by them being described as "not the guys with the sheets").

SSS (Suki Suki Sia)
Suki Suki Sia-chan is a group of fans of Lisianthus introduced in episode 5 by their affiliate Nakabayashi 2, vice president of the science club.

Sia Imperial Guard Commando Unit
Ping pong players from episode 3.

RRR (Ran Ran Rin-chan)
Ran Ran Rin-chan is a fan-group of Nerine introduced in episode 3. The Science Club treasurer Nakabayashi 3 is affiliated with them.

Nerine Shock Troop Security Squad
Another group of male admirers of Nerine that appear in episode 3.

Personal Guards United
3 brothers in the science club each affiliated with a different fan club who unite to attack in episode 5.

Episode 1
One member named Magnum Sakai appeared in front of Kaede and Rin to introduce himself as a member of KKK but fails to beat Rin Tsuchimi with a baseball bat placed with nails due to his unbalanced jumping and possibly surprise at Kaede's comment that she had "already given herself to Rin, body and soul".

Episode 2
Three members appeared in front of Kaede, Rin, Sia and Nerine. The three people tried to attack Rin but they got defeated by Nerine's Magic. They later returned with more recruits and chased Rin again. After Rin was hiding under the chair when Asa is sitting in a cafeteria, Rin found out that the club members found him because Kareha thought they were his friends. They chased him again until Rin hides inside the room inside the stairs, along with Itsuki.