Full Metal Panic!, Kure-nai Recommendations
Kurenai's style is a little more unique, while FMP has more romance. But, at the core, both stories are similar in humor and in plot - a young guy is entrusted with a girl to protect and so on...Plus, both stories are very good. Watch them!
In both animes the heroine is being pursued by someone important and a bodyguard is hired to protect them. Eventually the girl begins to like their bodyguard.