Valerian Empire - Chapter 1

Gawain is dead and was transmigrated, but there was a slight problem during the process.
After floating for more than a hundred thousand years on a different continent, he felt that he might need a body to become a complete transmigrator, but he did not expect that…

- Description from Novelupdates

An ordinary young man reincarnates as Adrian, the eldest son of a once-prominent noble family now living out in boonies of the kingdom. Watch as Adrian embarks on a tantalizing journey, to support his graceful and caring mother and feisty older sister, as a man should, with his seduction system.

I became a side-character who died in anguish because of her good-for-nothing husband.

If I can’t avoid getting married, why don’t I change who I marry instead?

“Excellent, marriage sounds good.”

“Wise choice. Then let’s have a wedding ceremony that isn’t too ceremonious. Following that, I’ll need you to go down to the Fief and behave like the lady of the house until I call for you. Naturally, there won’t be any time to spend in leisure whilst dousing yourself in luxuries.”

“I’m not marrying you, but your father instead.”

“……Pardon?”

“I’m not going to marry you. Do you have a problem with that?”

Haruto Saito, was playing a mobile game called “King of Cards” when his phone exploded due to overheating. He then transmigrated into the world of Naruto and found out...Why can I see the name, identity, and reputation of each of them?Killing hostile ninjas will drop cards? Ninjutsu cards! Taijutsu cards! Forbidden jutsu cards! Mystic jutsu cards! Can cards be eaten? Will you gain corresponding abilities after eating them? What are equipment cards? Killing Uchiha clan ninjas can drop Sharingan bloodline cards? Killing Hyuga clan ninjas can drop Byakugan bloodline cards? What if I kill Kaguya? ! !Naruto world is gamified! Reputation exchange! Ninjutsu enhancement! Achievement rewards! Unlimited first kills!“Excuse me, I'm not targeting anyone, I just say that everyone here is garbage!” At the Five Kage Conference, Haruto Saito said lightly, tapping his fingers on the table.