In DC/Young Justice with the Omnitrix/Ultimatrix and a Chat Group - Chapter 25: Through the Eyes of Love

That lonesome night as he lays dying in the hospital, fearing of death and desiring the taste of life, his mind became unprecedentedly complex with mixed emotions.

Myasthenia gravis — an incurable disease where one’s muscle slowly degenerated until the day when one can no longer move and only tears may flow.

“Is this… dying?”

When he opened his eyes again, he had crossed over into the body of a two months old infant, right in the middle of an assassination attempt.

He was born as the illegitimate son of a noble. His name was Fan Xian; and with that name came the burden of deep political secrets and the legacy of his mother.

He understood; to survive, he needed unparalleled strength, money and political power.

To a new world with the luxury of a new life, so named; Celebrating the Remaining Life.

- Description from Novelupdates

This story is set during the end of the Sui Dynasty, a time where multiple powers struggled for supremacy and power.

Into the fray enters two orphans Kou Zhong and Xu Ziling; these two youths by many chances and luck obtain ‘The Secret to Long Life’ allowing the two to obtain profound martial abilities and a chance to rise to the top in this age of turmoil.

A miracle doctor is exiled to an alternate savage world and forced to change his scummy ways!

Having thoroughly offended God, Yan Mo’s soul was transmigrated to another world. He quickly understood the cruelty of this world he’s in. The reason he was hit unconscious by someone and brought back to his home, was to be that primitive man’s food reserves in winter. The tribe he is in is a super spartan primitive tribe, the people here only respect two things: Combat power! Fighting ability! The former is the fighting power in battles, the latter is…

……

Examine illness? Chinese medicine? Drink those bitter sandy things? The hell is that? Are you trying to murder our tribe’s warrior? Die!

Plant wheat? Raise pigs and chickens? We are warriors, not s*aves! Die!

Teaching the women to make clothes and cook? Make them soap and perfume? F*ck, he’s actually seducing our women! Die!

You’re a messenger of god? Here to lead us to a better life? Very well. We’ll give you one day, conquer all of our enemies, make them into sl*ves and bring them back. If you can’t, you’re dead!

Yan Mo: “……”

When The Cute Kunoichis Spied on Their Teacher's Secret is a light novel written by Kazuma Kamachi and illustrated by Ryuushi Tajima.

The story takes place in a world where Japan never ended their isolationist phase, and agents from foreign powers are always threatening to steal the country's advanced technology. In order to combat this threat there has been a resurgence of ninjas that use Strategic Martial Arts, techniques that combine cutting-edge modern technology with a traditional foundation of martial arts and ninjutsu. The story follows Souha Sugiyado, a 17-year old ninja instructor and former ninja prodigy who was forced to retire from active duty by the wounds he suffered in his last mission. Souha's four students are all kunoichi who have all gained the rank of Elite Ninja, the highest official rank available to ninja. However, one day two Shogunate ninja approach him with the news that his four students have gone rogue and have stolen a portable modular nuclear reactor, and thus they ask for his help in bringing his students to justice.