If you're looking for manga similar to New Mobile Report Gundam W: Endless Waltz - Frozen Teardrop (Light Novel), you might like these titles.
Two hundred years have passed since people floated the islands called space colonies into outer space. During this time, several wars have occurred. It was a battle in order to protect the Earth. Amongst the twinkling of the stars, man hated one another, got hurt, and collapsed, yet did not forget love. Much blood was shed, and grief brought forth. The souls of the dead wander the silence of the universe become light and melt into the Milky Way. The immeasurable universe swallows the feelings of everyone, continuing with no change. When the Earth loses its radiance, changing the people’s prayer to sighs of grief, one soul crosses time. Perhaps that person was the harbinger who awoke for that.
30 years ago, before the original Kamen Riders were created, Jun Kadowaki was supposed to be used as the original Kamen Rider, but Shocker's plans changed after Hongo escaped. Before he could be awakened, the Double Riders destroyed the Shocker base and the sleep capsule that Kadowaki was in was buried underneath the rubble of the Shocker base for 30 years. When he finally awakens in the present day, Kadowaki has no recollection of his life. The story follows his quest to regain his memory and figure out who turned him into a cyborg.
During the One Year War a boy named Van Asiliaino and his friends attempt to flee the war, and their fates change when they meet a certain soldier.
The series takes place in the year 2400, where the world is controlled by the "Solar System Alliance." The reason the Alliance was able to take control is because they wield mobile weapons. Those humanoid weapons use "Cyclonics" electric chips that convert the superpowers and wisdom bequeathed to mankind into interference power. These humanoid weapons which amplify their pilot's psychic powers are called "Titanic DOWLs," or just "DOWLs" (Defender Operated by Wired Linkage). DOWLs do not lose to other weapons, and are part of the Solar System Alliance's unit, "Sophia," who keep the world under the Alliance's thumb. However, this will soon change when two DOWL Masters—Aoi Saotome and Reine Ward Takajou—have a fateful meeting at a high school in an aerial city.
Third class citizen Hibiki from the male-only planet of Taraak sneaks aboard the extra large battleship Ikazuchi as a result of unusual circumstances. However, it comes under attack from the Magno’s Family pirates from the female-only planet of Majere! It is Hibiki’s first encounter with those who are said to ‘eat men’s innards’ but..