At first, Takayuki Narumi is befriended by Mitsuki Hayase only because Mitsuki's best friend, Haruka Suzumiya has a crush on him; however since then, Takayuki, his pal Shinji Taira, and Mitsuki have grown to be the best of friends. Then one day, Haruka confesses to Takayuki her love for him. Not wanting to hurt her feelings, Takayuki agrees to go out with her. After a few incidents, their relationship gets intimate, even while Takayuki and Mitsuki begin to realize their feelings for each other. But suddenly, when tragedy strikes, things are never the same for these four friends again. [From [url=http://www.animenewsnetwork.com/encyclopedia/anime.php?id=2570]ANN[/url]]

This game consists of two parts: Muv-Luv Extra and Muv-Luv Unlimited. Unlimited is unlocked after you get the endings of the two main heroines (Sumika and Meiya) in Extra. Muv-Luv Extra: Shirogane Takeru is a typical high school student with a lazy attitude and a love for the virtual reality mecha battle game Valgern-on. Even though he didn't really want it, he is popular in school mainly due to his daily fights with his osananajimi (Sumika) attracting too much attention. His life takes an unexpected turn when he finds a girl (Meiya) he doesn't remember ever meeting in his bed one morning. That girl is later revealed to be the heiress of one of the biggest zaibatsu. She immediately moves to his house and starts changing his life for the good with her one-track-mind and unlimited resources... Muv-Luv Extra, the main part of Muv-Luv, takes place in the same world (and general area) as Kimi ga Nozomu Eien and Kimi ga Ita Kisetsu. The Sky Temple family restaurant is mentioned and visited, and Suzumiya Akane makes an appearance. Muv-Luv Unlimited: [spoiler]One day Takeru wakes up late, wondering why Sumika or Meiya didn't wake him up this morning. Not seeing any signs of them he gets a bit worried and goes out of his house only to see the town he lived in all his life in ruins. After getting past the initial shock he decides that this must be a dream and decides to enjoy it as much as he can...[/spoiler] [Partially from [url=http://en.wikipedia.org/wiki/Muv-Luv]Wikipedia[/url]]

Muv-Luv Unlimited: The Day After is a sequel to Muv-Luv Unlimited. In a desperate attempt to exterminate the BETA, mankind has forsaken the Earth. Stranded onboard a TSF carrier in the South Pacific, a handful of survivors scramble to find a way back home to America. This is where Muv-Luv Unlimited: The Day After begins.