No, no panties or fanservice or anything like that. Even the beach episode that >>13517250
is talking about was not fanservicey at all. Hell I think they were all in one pieces and it would only turn on a lolicon.
I don't want to spoil anything more for you but it's basically an adventure/mystery show about a girl named Chiko. Something important happens after about 4 episodes and that's when the main plot kicks in. Watch it until then... you'll know what it is.