Hina, otherwise known as Guardian Hearts, is sent to Earth on a mission to protect the peace... and with strict orders not to let anyone find out her identity. So when Kazuya accidentally sees Hina transform just when she comes to Earth, he is forced to take her home with him. Because it’s ok to know about a secret identity if you’re family, right? At least that’s what Hina believes! But as if living with Guardian Hearts isn’t troublesome enough, magic girls now seem to be appearing everywhere and revealing themselves to Kazuya! Can Kazuya survive the attentions – and jealousies – of so many girls? One thing is for sure, Kazuya’s days will be anything but dull!
When Mifune fell hands first into Chiharu's bulbous, bulging bosoms one day, he had no idea his life would change forever. For the girl is a member of Eiken, a school club filled with busty beauties such as banana-loving Kirika and the exceptionally top-heavy child Komoe, and they've decided to recruit the boy as one of their own! With perverted situations at every turn, Mifune finds himself in frequent compromising positions, whether the group is participating in swimsuit bungee jumping, riding a yogurt slide in pairs or even seductively eating phallic food.
If you like ecchi, then you will love Eiken and Guardian Hearts... simple as that.
Eiken takes Ecchi to more of an extreme than Guardian Hearts but they are both absolutely hilarious! XD
Guardian Hearts has more of an actual storyline but it is shrouded behind all the ecchi craziness.
Overall, ecchi + more ecchi - definite storyline = two great shows!
In the distant future many things have changed. Worlds are colonized and people travel the stars freely. The GOTT (Galactic Organization of Trades and Tarifs) exists to maintain order and peace along the galaxies. Enter two ES members. Eclair and Lumiere. They are sent on missions to keep the universal peace, under the flag of GOTT. But soon they come to realize that there is more going on behind the scenes than they previously imagined...
With Queen Beryl defeated and her Dark Kingdom destroyed, Usagi and the rest of the Sailor Senshi have returned to their normal lives, with one exception: none of them have any recollections of ever being Senshi! When a new threat appears in town, will the girls regain their memories in time for Sailor Mars, Sailor Venus, Sailor Jupiter, Sailor Mercury and Sailor Moon to save the day once more? And just who is that little girl with the pink hair? Only time and transformations will tell!
With a long drawn out transformation spectacle the characters strive for the dramatic in both Guardian Hearts and Sailor Moon. The transformations are not their only similarity there is also the comedic fact of the absurdness the girls exude. Guardian Hearts does have a great deal more ecchi whereas Sailor Moon is more on the innocent side of life.
Kazuto Tokino lives his tranquil life attending high school by day and running the family bath house by night; but his peace is all set to change. One fateful day, the Beautiful Princess Valkyrie crashes her spaceship into Kazuto’s public bath, killing the high-schooler outright! In order to revive him, Valkyrie gives the teen half of her soul, with the unfortunate side-effect of reverting the princess back to a child in both body and mind. Now the young Valkyrie is moving in to the bathhouse and, with her brash sister Hydra and over-protective catgirl maid Sanada following close behind, it seems Kazuto’s peaceful life is long behind him…
In both titles poor (happy) male-protagonist is surrounded by weird girls (even aliens), which somehow constantly makes troubles. Besides, there are a lot of madness and ecchi, which inherent to both titles.