A Clockwork Ley-Line: Daybreak of Remnants Shadow

Shuuya lives with his younger sister Mirai and attends Academy Tengyou Daini. However, their peaceful days come to an abrupt end as their world is taken over by an alternate world called Waibin Sekai – one where angels and demons battle each other and monsters called ‘creators’ roam freely. The students are forced to decide to ally with the angels, side with the demons or do neither. No matter which choice they make, they would be hard pressed to survive in this dangerous world.

With his parents moving to America for work, Jinno Kyouji returns to his hometown, Kurehito City, after several years of absence to live with his mother's cousin, the free-spirited Saitama Yamiko. There, he encounters several girls he shares a history with.

Kazuyagi Akane, the strong-spirited tomboy he grew up with.
Namiki Aoi, a gloomy girl who's Akane's best friend.
Misono Kiika, a graceful, good-natured classmate of his from his old school.

In three years of absence, his hometown and its people have changed ever so slightly. Despite some hiccups, Kyouji's peaceful days in his hometown begin.

At least until he meets a mysterious girl on his way to his first day at school. Violet hair. Large, striking eyes. Skin that's paler than the driven snow.

"Welcome home," she says. "My name is Yuka. Remember it."

And wherever Yuka is, one mysterious, inexplicable figure is always nearby—a monstrous man by the name of Gore Screaming Show.

Kyouji's encounter with these two figures marks the end of his peaceful days—as they bring madness and despair into this world. Will Kyouji and the girl he loves be able to escape and return to their peaceful days? Or will they—

How a Retired Strategist Saved the Country is a real time strategy simulation game where you manage resources to develop your country.
The player is asked by elves, beastmen... Etc. various heroines ask you for help, and then you take command of their country's army.
Will they become the victors, or princesses of ruined countries... It all depends on you."

“Dear God, I now make this, the single request of my life…”
—–The near future, Nagasaki.
Into this city, with its long and checkered past
was born a rarity: a child with wings.
I don’t know when it started, but
The school overlooking the town
came to be known as hallowed ground –
and that is where we met.

Though summer comes closer, there is nothing new, and a boring day just rolls on. But, his boring life suddenly ends. He is forced to look for a key of the observatory. He reluctantly accepts it, but gets a little bit excited. An exciting feeling.... A hunch of something will happen. Just before the summer holiday, he meets her....