League of Legends: League of Unknowns - Chapter 5 - Duo Top

Haruma Kazuki is a cursed (or maybe just deeply unfortunate) high school student whose lewd, panicked, or absurd thoughts literally manifest in reality — especially when he tries not to think about them. The more he denies or avoids feelings, the more chaotic and trope-heavy the consequences.

The Empress who dies in torture, An Rushuang is her name. After she wakes up, she finds herself has time-travelled to when she was twelve years old, but she would turn into Major General’s white horse at night. He is a general who orders about the winds and clouds on the battlefield, and she is a little girl lives in her boudoir seclusively.
She endeavors to change her fate, and he spared no effort to win every battle. They meet each other every day, well, it’s night to be accurate. Is that a dream or not? She pleads to marry the seignior to win peace for her family, only to find he is the one she is going to marry.
“Growing old with you under the same roof is my long-cherished wish”, thought them both.

- Description from Novelupdates

A man found himself mysteriously reincarnated into the universe of Against the Gods.The good news: He was conscious from the moment he was a sperm.The bad news: His parents died when he was born and he was left in the wilderness to die.The good news: He was saved and adopted by the Medical Saint, Yun Gu.The bad news: His master was killed by some villains who wanted to steal the Sky Poison Pearl.The good news: His genius is almost frightening!