Another in the pocket shojo genre of foisted parenthood, unlike UFO Baby (aka Daa! Daa! Daa!) the child here is an actual human. Based on Yoko Maki’s manga, it deals with a teenage boy who has to look after his 5 year old cousin when she is abandoned at his house. Solid TMS style animation under the shojo trappings from TMS veteran Masahru Okuwaki and a crew of Detective Conan folks (though I’m guessing everyone at TMS works on Conan at some point).