MTL - The Amber Sword - v6 Chapter 466 Battle of Mintai IV

Shuu is a member of the literary club that can’t write. One day, he gets a mysterious message on his phone from a girl called Eina, and from that impulsive contact, they begin to exchange messages. They talk of things like their shared interest in novels and grow close. However, when they try and meet, they discover a shocking truth. Eina lives… not in the present, but five years in the past! How will their love develop, parted by five years of nights…!?

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.

Some say reincarnation is a blessing, but for me, it's a dreadful curse. Cursed with endless reincarnation, I've been reborn as a villain 137 times. And all 137 times, I've been toyed with and killed by heroes who are far more cruel than the said villains... If I can't win no matter what I do, then I'll crush those so-called heroes at their very roots. - Quality Fan Translations, Made by Fans for the Fans - Villain Takes Over The Academy

Due to an accident, Chu Ling, an Omega, was forcibly marked by a strange Alpha named Han Gu. The government stipulates that the marked Alpha and Omega must be married. The two were forced to live together on the premise of marriage, and Chu Ling had to break up with his ex-boyfriend.

After cohabitation, both parties are affected by the mark, are particularly sensitive to each other’s pheromones, and are also extremely thirsty for each other’s bodies. From the beginning of the two people’s rejection and resistance to instinct, to understanding each other, and finally falling in love with each other. Willing to let the other person into his heart.

“If I give you another chance, will you choose him or me?”

“I choose you.”

- Description from Novelupdates