Has the Tenth Generation Boss Paid Off His Debt by Slaying Demons Today?

Ten years after inheriting the Vongola, Tsuna looked at the financial reports showing a deficit every day and wept.

Ten years! Ten years!

He still hadn't earned enough to cover the damage that bunch of human weapons did to the house!

How am I supposed to save you, my financial reports?

Before he could do anything, though, the house got wrecked once again, and he discovered a mysterious little note.

It was written in his own handwriting, and it invited him to a mysterious little grove.

The handwriting and the code were unmistakably his.

Could his future self be leaving him a hint?

Following the note's instructions, Tsuna went to the mysterious little grove. After getting separated from his companions, he encountered a man-eating monster.

The monster looked human and craved blood and flesh, but it feared sunlight and could be killed by decapitation.

What a coincidence. He might not have a sword, but he did have Dying Will Flames.

After killing the man-eating monster, a swordsman hurried over and saw the demon, burned down to a single head.

The swordsman was stunned!

A talent! What an incredible talent!

He'd killed a Lower Rank demon without even using a Breathing Style! A talent like this had to be introduced to the Master!

When Tsuna saw a man from over a hundred years ago lead him to a traditional Japanese mansion, he immediately realized, as someone who transmigrated all the time, that he had returned to the past.

He had only meant to go home, but when he heard the young man named Kagaya offer him a generous payment, he was sorely tempted.

Killing a few demons would earn him several months' worth of Vongola income! Could there be a better deal?

Everyone! I'll come back once I've paid off the debt and saved up enough money!

Tsuna decided to stay in this time period, join the Demon Slayer Corps, and work hard killing demons to pay off his debt.

And he'd heard the Twelve Kizuki and the Demon King came with even bigger bounties?

Muzan and the Twelve Kizuki: Don't come any closer!

Content warning:

Alternate setting: Tsuna's Dying Will Flames are the demons' natural enemy, and he can slaughter them with ease in Demon Slayer. Muzan and the others can only keep their heads down.

Since Tsuna can slaughter them all on his own, very few others from Reborn! come over. Even when they do, they only stay a few days or bring him equipment.

Theme: Passion, hard work, and perseverance