Nobuko is an Archie comics character of TMNT that appeared in Teenage Mutant Ninja Turtles Adventures #62 (Once Again, Always). April O'Neil and the Ninja Turtles would meet her and few other ninjas in training in the future. She was revealed to be April's and Oroku Saki's great-granddaughter (not from April and Shredder hooking up but apparently their kids date). Her last name is unknown