Baka to Test to Shoukanjuu‎ - Volume 11, The Second Question

He Lang died by his own hands for the sake of his imperial younger brother’s ambition, whom he loved. He was offered to be reborn in exchange for giving up his past romantic feelings. Reborn without the burden of his romantic feelings, he brings with him a manual to new worlds. He wholeheartedly followed the instructions of the manual to complete the tasks, not knowing that the originally slag gong was blackening…
He pleaded to his affectionate Emperor brother to release him, he pleaded to the paranoid prisoner next door, but until the end he remained baffled.
In the end, he discovered that the full name of the manual was – “Slag Shou Cultivating Manual”
Σ (っ ° ° °;) っ!

- Description from Novelupdates

For decades, the brave warriors of the Northern Army fought to keep the world safe from the evil Silent Night. But when the fourth-generation leader, Jin Kwan-Ho is accused of colluding with the enemy, he is forced to disband the sect and commit suicide to protect his son, Jin Mu-Won. With no family and allies left, Mu-Won leads a dreary life under close surveillance… until a surprise attack from the Silent Night gives him a chance to escape to the mountains.

There, the young warrior trains to master the fighting techniques of his predecessors, before the mysterious disappearance of a loved one brings him back to the mainland. Follow Jin Mu-Won as he embarks on a journey to avenge his father’s death and take down the villains who threaten to plunge the world into darkness!

A skilled but unfortunate modern-day assassin was killed in a freak accident. However, he soon found himself summoned to another world by an evil wizard, who had him possess the body of a boy as an experiment. After successfully planning the evil wizard’s downfall, he used the wizard’s body as a springboard to gain influence and power in his new world.

- Description from Novelupdates

Jiang Li, the legitimate daughter of a noble house, has traveled through time, becoming an insignificant character in a domineering CEO romance, who quickly meets her demise.Confronted with the most saintly female lead and the domineering male lead of the novel, Jiang Li instantly decides to stay away from these two 'idiots', focusing instead on making her own family illustrious.What to do with her genuine brother, who plays a lovestruck second male lead and is a complete wastrel?Jiang Li ships him off to a transformational variety show where the prodigal son becomes instantly famous, eventually becoming a movie emperor;What about the illegitimate younger brother who's always acting like a goody two shoes to win favor in the family?Jiang Li leads by example as the top student, turning the faker into a model student, and paves his way from undergraduate to doctoral studies;And what of her autistic cousin who constantly locks himself away in a dark room, weeping?Jiang Li prescribes the right remedy, turning the melancholic poet into the king of songs at the Temple of Heaven, his love ballads bringing millions of young girls to tears;Thus, the once wavering and declining noble Jiang family rises under Jiang Li's management, becoming the most respected and well-mannered leading family in the capital.The first time Jiang Li meets that man, he had just finished chasing a herd of runaway cows, his face redder than the sun with high altitude flush.He extends his hand to her with a grin, introducing himself, “Hello, I am Zhao Daniu.”Jiang Li stares at his muddy hand, still emitting an unidentified smell: “......” A silent rejection, thank you.Upon their next encounter, he has transformed completely, now the distinguished and formidable heir of the Gu family, his presence as refreshing as a breeze in the moonlight, peerlessly noble.He extends his hand again: “Hello, I am Gu Yu, I hear your family is in need of a man to take charge, do you think I'm suitable?”All members of the Jiang family leap out: “No! We don't need one!”