As the eldest of eight siblings, with their father deceased, he spends every day doing housework for his working mother and taking care of his seven younger brothers.

One day, he died saving his younger brother from being hit by a car.

When he next wakes up, he's the commander of a knight order in a world just like a novel he'd borrowed from the library!

Wait, wasn't this knight commander incredibly evil, eventually getting executed by the protagonist along with his entire knight order!?

My subordinates, thanks to my past self, are even more ill-behaved than my younger brothers!

At this rate, I'm heading straight for the execution ending!

From now on, I'll whip them into shape! Don't underestimate the big brother of seven!

This is the tale of such a mother-hen type of man's valiant efforts.

The first chapter of this work has also been released in advance on Kakuyomu.

At least one chapter will be updated weekly.

A manga adaptation is currently being serialized on Kadokomi and Niconico Manga!