[Lestrade]

I actually think the Cardcaptor Sakura anime was superior to the manga ^_^* Neither of them are remotely "adult"... they're aimed at little girls, though Japanese little-kid comics get away with things (like gay characters) that American comics just don't do.

I was going to come in here and recommend everything Yoshinaga Fumi has ever written because she's amazing, but she writes quiet slice-of-life things, so you might find her stuff boring. (Garden Dreams, a one-shot, is my absolute favorite manga I have ever read.)