Ryūsei Narukami is your typical NEET. He spends his days shut in his room playing video games without a care in the world, living a lazy life. But the truth is, Ryūsei used to be a powerful demon king in another world! So why not spend this new life doing whatever he wants? Except, he wasn't the only one reincarnated into this world. The hero who struck him down is here too—and she's a really cute high school girl?! Can Ryūsei survive reuniting with his foe in a new world, or will he find himself fighting even in this life?

佐藤和小姬等人集齐五枚戒指后，与深渊王展开决战，一度将深渊王逼到绝境，却因为佐藤耗尽力量而陷入险境。千钧一发之际，阿拉巴斯塔及时救了他们，一行人决定先撤队重振旗鼓。就在此时，小姬的妹妹茉莉昂突然现身。
为了再次向深渊王挑战，佐藤和小姬等人各自锻炼实力，加深情意，进行所谓的「新娘修行」。在各种试炼下，佐藤和小姬的感情更加深厚，与涅芙丽缇丝、葛兰纳托、瑟菲珞、安芭卢的关系也有所进展。佐藤一行人下次能否打败深渊王，取回和平呢！？
攸关世界命运的「新娘修行」，异世界新婚奇幻故事，再次开始。



[简介原文]
5つの指輪を集め深淵王との決戦に挑んだサトウとヒメ達は、あと一歩のところまで深淵王を追い詰めるが、サトウが力尽きてしまい窮地に追い込まれた。間一髪をアラバスタに救われ、一行は一時態勢を整えることに。そこにヒメの妹・モーリオンが突然現れる。
再び深淵王に立ち向かうため、サトウと姫達はそれぞれが力を付け、絆を深める修行 ― すなわち「花嫁修業」をすることになった。様々な試練を課され、サトウとヒメは更に仲を深め、ネフリティス・グラナート・サフィール・アンバルとの関係も進展していく。
サトウ達は次こそ深淵王を破り、平和を掴み取ることができるのか！？
世界の命運を懸けた「花嫁修業」 ― 異世界新婚ファンタジーが再び始まる

Famous racehorses that have left behind worthy legacies, unique as they can be, are reincarnated as horse girls in a parallel world. In this life, they start their journey anew as they continue to race and perhaps relive the success they once lived through.

Aspiring to become the best racehorse in Japan, a horse girl named Special Week moves to Tokyo to enroll in the Tracen Academy—an institution that nurtures horse girls like her to become better racers. There, Special Week witnesses the sophisticated running style of Silence Suzuka and is inspired to become a racer like her. Shortly after, Special Week finds herself recruited into Silence Suzuka's team, Spica. From there, she begins her path to the top—one lap at a time.