MTL - One Useless Rebirth - Chapter 63 Future home

Side story of Kyoukai Senjou no Horizon bundled with the first press release of the 1st, 3rd, 5th and 7th Blu-ray volumes of both seasons of anime.

This side story follows Asama, Kimi and Mitotsudaira aboard Musashi one year before the beginning of the main story, as Asama is considering to create a music band together with her two friends for the next festival in Aki, a territory under the governance of K.P.A. Italia.

Have you heard stories of love, love that would never waver for years, decades, centuries or even millenniums to come?But can you really call it love?To keep loving someone forever and ever can't be anything less than crazy, can it?This is one such story.A story of a crazy love.And it's also a story of ...Someone somewhere who wished to be saved.Someone somewhere who wished to be free.Someone somewhere who wished to be able to someday make a wish.It's a story that was supposed to be a fairytale but it turned too ugly, too twisted, and far too wretched to be called one.

The Immortal Path led to Longevity and Sovereign was heading in ease. When the Longevity was no longer in ease, all living beings were just prisoners. Conspiracy, internal strife, and the invasion of the others, all of it emerged together. 

In such a world, there was such a young man. He made his way upstream, stepping on blood, defying the emperor, destroying the various kings, and slaughtering his way through the hundred clans to form an Immortal Path towards the throne of Sovereign! The Immortal Path was endless, while the Sovereign was limited. He used his blood to forge his immortal legend.

- Description from Novelupdates

Once she crossed through, she actually became the disfavored third WangFei?