alright so in Japan gets blackmailed by his sister to play a game were you are the main girl and try to charm the 5 main guys.
after playing the game he dies and ends up in that world as a background chackter.
this world however heavly favor the woman and the men are pretty much slaves and needs to earn money to support there wifes and there boy toys.
when he mange to get some land, a powerfull airship and a AI familier he goes to the academy instead of getting married to a hag 3 times his age.
at this academy he learns the main heroine got past aside and some back ground girl took her place.
in order to make sure he wil survive the future he tries to fix things.
at the end when the war happans the fake screw up as she has no idea how to beat the boss. after some screaming to eachother he learn that she is his sister from his past live.
when he does mange to fix the ending he learns that the game was not 1 game but 3 games, and after mange to beat the first and 3 boss the second is stil coming.
so he and his sister and her entrorance goes over sea to beat the second boss.
1 of the 5 main idiots screw up and the main guy loose his ship and all his stuff.
he makes other bet to earn it back but the noble bastart cheats by kidnapping his sister best friend who is shown full treatment and later on tied up.
