War(Date), resumes.
The peaceful days of Itsuka Shidou returned without having to save the Spirits from the relentless battle days. But, the peaceful days were interrupted by the emergence of a mysterious sphere emitting spiritual wave――as well as a mysterious girl who showed herself at the same time. What is her purpose of keeping an eye on Shidou……? The mission that had been entrusted to Shidou under the tense situation was, 

“Date all of the Spirits, and make them fall in love?!”

――With the fate of humanity at stake, the war(date) resumes!

(Source: Date A Live Wiki)

Anime adaptation of Solomon arc of Fate/Grand Order video game. In 2015, the last era when magic was established. Chaldea, a humanitarian continuation guarantee agency established to prevent the decisive extinction of humankind, was observing a certain incident. The near-future observation lens Shiva has proved that humanity will be extinct in 2017. Chaldea identifies a singularity in space-time that is thought to be the cause of human extinction. Decided to perform a forbidden ritual, Rayshift, which turns the surgeon into a ghost and sends it to the past to restore humanity. However, at the moment of the Rayshift decision, the central monitoring room of Chaldea was blown up by someone, and the prospectus was blocked.

Bong Gi used to have dreams of making something of his life. But now all that seems like a distant memory. He has become fat, lazy, unemployed, and altogether unlovable. In the real world, people are grossed out by him. He has never had a girlfriend and he spends his late nights fantasizing about women whose pictures he leers at on the internet. His own life appalls him, but he has one escape – his online life. Gaming has become his everything, and he excels at it. After another long, lonely night of gaming, he wakes up – and is shocked to find that he has transformed into a woman. Or to be more precise, a woman who looks a lot like those he used to lust after online! Confused, he does not know where to turn – so looks for answers on the net. He encounters a young woman in a chat forum named Sae Mi, who offers him advice. He soon falls for her charms – which makes things complicated to say the least. And things get even more bizarre when he attempts to take revenge on Sang Woo, a school bully who turns out to be Sae Mi’s older brother! (Source: Viki)

When the "Sirens," an alien force with an arsenal far surpassing the limits of current technology, suddenly appeared, a divided humanity stood in complete solidarity for the first time. Four countries—Eagle Union, Royal Navy, Sakura Empire, and Iron Blood—formed Azur Lane, paving the way for the improvement of modern warfare, which led to an initial victory against the common threat. However, this tenuous union was threatened by opposing ideals, dividing the alliance into two. Sakura Empire and Iron Blood broke away and formed the Red Axis, and humanity became fragmented once again. As a seasoned and experienced fighter, the "Grey Ghost" Enterprise shoulders Azur Lane's hope for ending the war. But behind her stoic persona hides a frail girl, afraid of the ocean. Even so, she continues to fight as she believes that it's the only purpose for her existence. Meanwhile, Javelin, Laffey, and Unicorn—three ships from the union—stumble upon Ayanami, a spy from the Red Axis. Strange as it may seem, they try to befriend her, but as enemies, their efforts are for naught. Still, they persevere in hopes of succeeding one day. Amidst the neverending conflict within humankind, the keys that could unite a fragmented race might exist: a soldier coming to terms with her mysterious personality and camaraderie between those with different ideals. [Written by MAL Rewrite]