In Muv-Luv Alternative, Takeru awakens three years after the conclusion of Muv-Luv Unlimited, only to find himself back in his room. While he initially assumes that everything he experienced was merely a dream, he soon senses that something is amiss. He leaves the house and discovers that he has been sent back in time to the start of the events in Unlimited. Refusing to accept a scenario like Alternative V, he resolves to assist Professor Kouzuki in completing Alternative IV to save humanity.