The Pichu Line 025. Pikachu (Peeka and Peeko) 026. Raichu (Adult Peeka and Peeko) 172. Pichu (Reeka) Program: Photoshop and Paint Tool Sai Misc: Peeka and Peeko are twins, and Reeka is their little sister. Peeka and Peeko have a fascination with the water, while their little sister, Reeka, HATES the water.