The Grandmaster Strategist - Volume 4, Chapter 30: Rebirth from Danger

An unnamed 34-year-old Japanese NEET is evicted from his home following his parents' death.

Upon some self-introspection, he concludes that his life was ultimately pointless.

Walking down a street he intercepts a speeding truck heading towards a group of teenagers, in an attempt to do something meaningful for once in his life he manages to pull one of them out of harm's way before getting himself in the way of the truck and dying.

Awakening in a baby's body, he realizes he has been reincarnated in a world of sword and sorcery.

He resolves to become successful in his new life, discarding his past identity for his new life as Rudeus Greyrat.

I am Master Siwei, and I speak for arcane arts.
This is an era of heroes and heroines.
This is an era of great changes.
In the end, it will be an arcane era opened by me.

- Description from Novelupdates

“I’ll clear your mother’s debt entirely. In return, you’ll marry me.”“Are you out of your mind? Do you really think I’d agree to such an absurd proposal?”“Possibly. But it’s a mutually beneficial arrangement. You keep your shop, and I get what I need.”“And what exactly is it that you need?”“That’s none of your concern. All you need to know is that this deal benefits both of us.”Two years ago, Lunara entered a marriage she never wanted. Desperate to save her mother’s flower shop, she was cornered by Eryx, a man with a hidden agenda. With no other choice, she agreed, and found herself bound to him in a transaction of convenience—he needed something from her, and she needed him to prevent her world from falling apart.But after the papers were signed, he disappeared without a word, leaving her with nothing but unanswered questions and lingering bitterness.Now, fate has thrown them together once more but with a cruel twist, Eryx doesn’t remember her at all.Lunara believes she’s long since moved on. But when she sees him again, a stranger who has no recollection of their past, old wounds resurface. What was the truth behind their marriage? And why, despite the resentment, does her heart still stir when he’s near?

Gu Xingshen! Your sister grabbed my man, you helped your sister grab my man! Your family is not anything good!

“My sister owes you, I will pay you.” “How will you pay for it!”

“Me”

“…” Later, this guy not only lost himself, but also included a little sticky bun……

- Description from Novelupdates