|Name (kanji/kana):||島田 真美|
Mami Shimada (島田 真美, Shimada Mami) is a fictional character and the 2nd Year High School Student of Hanazono High in Kunio-kun series. She was actually a Riki's girlfriend, who is kidnapped by Yamada in Downtown Nekketsu Monogatari.
- In River City Ransom, Mami was name Cyndi, a Ryan's girlfriend.
- in River City Ransom Underground Ryan and Cyndi been Broke up after the events of River City Ransom and been remaining as friends.