I enjoyed this Hentai, This Series Had a excellent story. The story starts off with a young man named Kakeru, who was imprisoned due to war, but was released by his elf companion Marlene to go back in time to change to the present. Kakeru must go back and time to save his girlfriend Sasha from her untimely end and the worlds dominion under the Dark lord Lucifon. In order to last in the past he must not let his younger counter part to know that the are the same people, so Kakeru from the future changes his name to Eto and wears aArmored suit to hide his true Identity. Eto manages to change the past and successful defeat Lucifon, and he reveals his true identity and returns to the present. I think over all the Story was mastered and the ending was heart felt, If you like soft core hentai filled with action, adventure and romance you'll enjoy this hentai series.