Tomodachi no Imouto ga Ore ni Dake Uzai - Volume 4, Chapter 1: My friend’s little sister is only clever towards me

Kyle woke up in a land of fantasy and magitech. The usual 'I died and woke up' bullshit, skip all that.

Except he used to be a crime lord, and society here is missing that extra kick.

This is the story of Long Yi, who was killed because he took revenge for the girl he loved. Before he dies, a strange lightning carries his soul into a different realm. How will he live, when the first thing he noticed upon arrival is that, the man whose body he possessed is raping the country’s princess?

An ordinary student, a wretched peeper, a cowardly teenager with a kind heart. In a terrorist attack, he inherited the knowledge of countless elites, embarked on a path of God Jagged Tu…

He is an artist!

He is a mathematician!

He is a psychology Doctor!

He is a master of fighting!

In fact, he is a man

Taken off raw site:

A wretched, dirty young man is working during the summer when he was caught up in a mysterious explosion. After that explosion, the young man is then left with the memories and knowledge of dozens of the world’s experts.

He has changed, his heart has become cold, iron-blooded. He became a killing machine, his mind turned mechanical, calculative. Everything goes according to his plans and calculations!

In this magical, slaughterous world, a door is opened for him…

- Description from Novelupdates

When you grow up, you’re mine.

~~~

Lu Feng, with her fiery character and short temper, only had one fatal weakness. That was the lukewarm and soft Xu Mu.

There were so many youths in the capital, yet she took fancy to none of them. She instead sought after her newly arrived neighbor’s sweetie and secretly planned to kidnap him home.

Until one day, the two became cousins…

Lu Feng: … That nutrient-rich water cannot flow into someone else’s field!

Xu Mu: =v=

~~~

Xu Mu: What am I to you?

Lu Feng: You are my sweetest candied fruit!

~~~

In their previous life, Xu Mu and Lu Feng were married for only half a year when she died in battle. Xu Mu couldn’t bear the news of her death and followed her three days later.

Who knew that after he died, time flowed backward and returned him to their childhood. Xu Mu sat on his bed, dazed. In this life, he needed to think of a way to first find his wife, then chase her with all his strength. Only until he made up their past life to her would he “leave”.

Xu Mu: Last life, I didn’t love you enough. This life, I want to love you even more. Starting from innocent little childhood friends to the grey-haired and weak elderly, I will not let you go.

- Description from Novelupdates