So far, I have already seen two Shinkumi fanfics. I have asked permission from the authors to post them here. So, here they are!

A 30_Kisses Challenge (Complete)

Author/Artist: MK!
Pairing: Sawada Shin x Yamaguchi Kumiko
Fandom: Gokusen (animanga-dramaverse.)

(To see other fanfiction done by MK, click here to visit her site.

True Confessions (Complete)

Author/Artist: Kiyasama
Pairing: Sawada Shin x Yamaguchi Kumiko
Fandom: Gokusen