Battle: Journey of Fireflies, Light and Shadow of Stars

[Marriage change + new elf + no system + time travel + daily fun + evil + decisive killing. The protagonist is inconsistent and doesn't know the plot. As for whether the predecessor was from Earth, who knows~] (The new author is Ai Power Generation) 30 years ago, the ground was hit by an unknown natural disaster called a space earthquake. A girl-like life form that causes this phenomenon intentionally or unintentionally called elves. Elves are special disaster-designated life forms that exist in the neighborhood. Disposal method one: annihilation by force Disposal method two, Date him and make him shy. … "You know exactly what you are talking about!" There seemed to be stars twinkling in the elf's eyes. "Shido Itsuka, listen carefully to your ridiculous remarks that day. Look at yourself, what can you protect?" "Escape, far away. Forget tonight's conversation, forget everything here. Like an ordinary person, stay away from this storm and spend your ordinary life." "If you must seal me. Very good. Defeat me and prove that you have the power to protect me." "Otherwise, please kill me. Or let me end you." … Let's see, the journey of the soul from another world to Tiangong City. I will fight with you until I grow old. The future is infinite, see you in heaven. ではPrivate たちのデート（戦Struggle）をstart めましょう