This is about two siblings who volunteered to test with the experiment that Aoba and Hina made to go back to the future. As they did, they will face the events of the future world.

Aoba is engaged to Dio for the sake of two kingdoms, can he truly be happy with this person? Dio has a knight name Fromm which he find quite attractive and cheerful, which one of them are the person he fated to be with? Pairing Dio x Aoba, Fromm x Aoba slight (Bizon x Hina)

Five years later, the Free Pact Alliance was losing the war against the Zogilians. But Dio Weinberg never lets his heart rule over his head. He struggles to strengthen his resolve to keep fighting using the only way he knows how—by being an Ensign.

Fate is changed. A paradox is broken. Free from the bonds of Fate, Aoba and Hina go back to where it all began, to live a new life... together. Aoba/Hina, alternate ending to Buddy Complex's finale.

At the end of it all, the paradox breaks. A soul trapped by time is freed, uniting with the only one who always trusted her. Their story has not a conclusion, but an opening to an eternity once denied... Alternate/expanded ending to the Buddy Complex finale. Aoba/Hina.

Aoba tiene un secreto, y no quiere que Dio lo sepa.

Aoba and Dio comes to the time Aoba is from...

Due to the faulty prototype technology of the older Coupling mechas, Dio has been seeing Aoba's memories. Plagued by dreams of a family he didn't know and a girl he had only heard about, he knew it was time to finally confront Aoba about the truth, and face the changes that were already starting to happen between them. Oneshot.

the captain decided to play a game of truth and dare, well you can guess what aoba wanted from dio, and went all crazy that day

With Yukas help Shiroi finally asks Dio out... But who are Yuka exactly? As Marcus dies Aoba comes into the picture will Yuka fall for him and what will Dios answer be? (I tried my best)

Getting tired of Dio and Shiroi's constant arguing, Fromm hatches up a dangerous plan to make sure they do stop arguing. With the help of Aoba, he succeeds... but at a cost. Dio x OC (Shiroi)