>Father gives you a time/dimension jumping device and asks you to find him by going through multiple dimensional worlds and searching for jewels for your device
>You go to a place called Sword Cape, a mysterious shrine that has been around for centuries with no explanation to why it exists, your fathers letter tells you to go there at night, when you do you meet a glowing naked women there who kisses you and then disappears.
>When you do the headmaster of the school points a gun at you to hand over the device, with your step mother behind him. Suddenly a flash of light appears and you disappear an reappear before the event happened, confused you start the game
>Each girl you can romance has something to do with Sword Cape
>One girl is mysterious and tells you that Sword Cape is dangerous and always seems to be controlling things from the shadows, another is a history geek who wants to find out what happened to Sword Cape and why it is like this, others include a news reporter and an employee of a company that is working near Sword Cape to retrieve crystals.
>You can romance anyone from your classmate to your fucking step mother
>Find out your real mother is from another world and your father knew this about her, and is basically trying to find her
>Find out your fathers close friend and headmaster is actually not human and is trying to get your device
>Eventually when you get all the jewels for your device, fuck every girl and literally die twice you go to another world that your mother was from
>Somehow, meet a local who doesn't speak. Turns out the local is a priestess that escaped from an imperial city and is tasked with sacrificing herself so that the world doesn't come to an end, for the sacrifice to happen she must not talk so that God (yes, God) can take over her body and reset the world to a period where it will not end.
>Decided that she can't die, and instead raise a kid with her in this new peaceful world. 3 years pass, and the kid has an accelerated growth rate and is around 12 years old by this time, during this time the imperial soldiers come and kill your wife due to her abandoning her duties and lament that she didn't have a successor (to their knowledge)
>You and your daughter go on a hunt to find the men who did it, in doing so the girl is kidnapped and you're put in a concentration camp that you only escape from by befriending a dragon that grows up into a dragon monster girl thing that flies you away from the camp only to die from exhaustion and you literally eat her to survive
>As you get closer to the capital, you have one goal on your mind and that's to find the god emperor, the one person who killed your wife. When you get close to finding her, you accidentally find your headmaster locked up in chains below a castle
>He tells you some important information for his freedom and you let him go, as you reach the castle you find your daughter is being brainwashed to give her mind to God so that the disaster averts itself, you stop the brainwashing and reunite
>Eventually the god emperor comes and you wait to kill them, but it turns out it's your step mother from before, and she has take the role of the leader because she had some idea of how exactly "God" worked.
>Turns out that this other world is another dimension that was inhabited by scientists of a world that was once earth, but due to differences in timelines that earth was destroyed by meteors and deemed uninhabitable. They escaped by moving a small part of the earth away and lived on this piece of rock because they had nothing else to do to save themselves, in doing so they had to adapt to new forms of living conditions. Created an artificial sun to thrive off of, and humans had to change to adapt to living on a rock and such.
>Apparently, one scientist discovers that the rock they live on is actually orbiting around OUR earth dimension and will collide with it every 4 years or so, to stop this she calculates the trajectory and narrowly avoids us. She creates a computer that will calculate this and uploads her mind to it, meaning it'll work forever with ease. This is their "God".
>Every few years a girl is chosen to be a vessel for her to be put into so that she can manually miss earth, this time it's your daughter
>She agrees to be the vessel, but you don't want her to be. Eventually she asks you why you're against the whole thing and you just tell her straight that you don't want her to die. After several minutes of awkward moments, she eventually asks you to fuck her. YES YOUR DAUGHTER because to her in this world, there is no concept like incest. Love is love. The MC actually agrees to this as well because it was her wish and he wanted her to be happy.
>The next day you find out the Queen is missing and try to find her, soon find her being held hostage by the headmaster
>Eventually learn that the headmaster of your school is actually a time traveling dimension jumping immortal being that is being hunted by the Dimensional Bureau of Investigation which the school's doctor is actually part of, and isn't from Earth
>The headmaster is actually looking for a way to escape being captured by the school nurse and would literally destroy two worlds and dimensions because he is immortal and can wait for another world to be created, his plan is to stop the girl from sacrificing herself
>School Teacher tells you that the reason she is hunting him is because she comes from a dimension that is researching how to basically get back to the root of time, before the first split occurred and her husband apparently got to the root (which is apparently God's domain) and in doing so the Headteacher followed the trail this man took all the way back to his body and occupied it, in doing so killing the original man and he was able to stay in that dimension and wreck havoc
>Eventually you distract him long enough for the school teacher to capture him and she leaves to go back to her dimension, you and your daughter are all that's left. She sacrifices herself to save the world, but before that you give her one of the Jewels in your device so that it'll keep her safe
>When she leaves, you suddenly wake up back in your own world with a jewel missing from the device, when you teleport to where the jewel is you discover the girl from the beginning of the game is laying there again. This time you know who she is and what to do. You hold onto her and tell her you won't let her leave
>Before you know it, you're transported to a world that's complete darkness with her, and she tells you that you were too late. Earth and the other place collided and it's all over, only those two remain. As they walk endlessly in darkness, they see light come from the sky and a sprout rise from the ground only to become a large tree and the rest of the world becomes encased in grass.
>Turns out they're the next start for the human race, a la Adam and Eve
>As for the Father you never see him, he is continuing to go through multiple dimensions to find the root himself.