1x18 - Mew Mew Power

While the four Mew Mews are fighting the chimera animas created by Pie and Tart, the Blue Knight battles Kish. He is injured while protecting Ichigo, but the arrival of the other Mew Mews causes the aliens to retreat. Before leaving, the Blue Knight tells Ichigo that he was born to protect her. Ryou appears out of nowhere to catch Mew Ichigo as she faints from her illness. At the café, the girls wonder who the Blue Knight is, and decide it must be Ryou but he claims he does not know anything about it. While on a date with Masaya, Ichigo is distracted and imagining she is seeing Ryou, but eventually discovers it is actually Lettuce and Pudding who were spying on the couple out of concern for Ichigo. After Masaya leaves, Ichigo admits she also believes Ryou is the Blue Knight. That evening while Ichigo is cleaning the café, Ryou surprises her by inviting her to go to the beach.