Re:life with Karmic Gacha (Modern Family) - Chapter 258 - : Can’t back out.

Leon was your typical guy, perceived as weak in his school because his skills hadn't awakened, even though they usually did at the coming of age. He attended the prestigious Milham's Magic Knight Academy, where snagging the top spot meant automatic entry into the esteemed position of a Magic Knight in the country. Unfortunately, Leon found himself in the lower caste, labeled the most useless student. To top it off, he was tossed into a class that served as a sanctuary for oddballs and delinquents. Yet, he couldn't care less, as becoming a Magic Knight wasn't his goal.Everything shifted when he crossed paths with Shredica, a woman hell-bent on becoming a Magic Knight at any cost. Observing Leon's lack of ambition and his apparent detachment from the academy's pursuits, Shredica saw an opportunity. She decided to exploit him as a pawn in her ascent through the academy's hierarchy.Yet, unbeknownst to Shredica, Leon was not the complacent, unremarkable figure she presumed him to be.

A good-for-nothing man married a beautiful girl but was kicked off the bed on the wedding night. Furiously, he wrote a bill of divorce and ran away.
He was schemed a car accident in which he nearly lost his life. However, it turned out to be a blessing. He swallowed the soul that passed through the outer world, thus obtained superb medical skills and martial arts.
Later on, with the silver needles and invincible martial arts, he embarked on the road of counterattacks and was committed to his great dreams.

- Description from Novelupdates

The day the city fell, Feng Yun was treated by her father as a spoil of war and presented to the enemy general.Everyone pitied her, soon to be a captive, plunging into a fiery pit.Yet she veiled the little donkey cart that took her out of the city tightly, daring not to let anyone see the secret delight in her heart…As a child, she behaved oddly and spoke startling words, once predicting a war in which the whole army was wiped out, nearly being burned to death by her clan as a demon.When she grew up, her beauty was out of the world, but she was rejected by her husband's family.In the period of chaos and disorder everywhewe, where could a female captive go?“I do not seek a devoted partner to grow old with; I merely wish to rule unrivaled in this life.”In her previous life, Feng Yun was always the one being scorned by others; in this life, she decided to strike first, turning the tables on each and every one of them, those so-called unreachable flowers and beasts in gentleman's clothing, those degenerates… all to be scorned in return.

A mecha otaku is reincarnated into another world as Ernesti Echevalier (Eru). In this world there exist huge humanoid weapons known as Silhouette Knight. Dreaming of piloting those robots, Eru, with childhood friends, Archid Walter and Adeltrud Walter: together they will aim to become a Knight Runner, pilot of Silhoutte Knight.