Margrave's Bastard Son was The Emperor - Chapter 234

[Ding! Congratulations to the host for obtaining the Voidwalker Dragon Bloodline.]The Celestial Dragon: “Little Ancestor, our geniuses are struggling to advance their bloodlines. Could you spare just a small drop of your diluted blood?”…Ash wakes up only to find himself transmigrated to another world, residing inside a young man who has the same name as him.In this new fantasy realm where the strong are respected and the weak are trampled, Ash received his cheat, which allowed him to summon strong powerhouses and obtain their powers through a draw chance, or even a lottery chance, where he could obtain anything from trash to the best treasures to ever exist.[Ding! Congratulations! You have summoned the strongest mankind alive, Aetherion — Lord of the Temporal Gates][Ding! Congratulations to the host for obtaining Aetherion’s Physique, Eternal Void Chronobody.]

Akira Kisaragi traverses into the Bleach world, unlocking a check-in system.He initially thought that by checking in daily, he could become stronger, soon become the Captain-Commander, join Division Zero, punch Yhwach, kick the Soul King, and marry Unohana...However, the system's style wasn't quite what he had imagined.〈 Check-in complete, obtained Genryūsai Yamamoto's secret roasted sweet potato! 〉〈 Check-in complete, obtained exclusive attribute: King of Normal Attacks, effect... 〉〈 Check-in complete, obtained Retsu Unohana's... 〉Akira's eyes suddenly lit up!“Seems like this might not be so bad after all!”

While reading a book, a sparkle of light disappeared. And, as it did, a message appeared.

After you’re awake but find yourself looking like a character in a game and came to a strange place, is this a different world or a game? Is it a rebirth or a cross over to another world? Everything needs to be explored by yourself!

- Description from Novelupdates