Mama Welcomed An Interloper To Our Home

Kouta was an only child, and he liked it that way.
His father usually traveled for work so he rarely saw him.
His mom Rei played the role of both mother and father.
She was very kind, although when Kouta
misbehaved she got even angrier than his dad!

They were essentially a happy family of two.

One day Kouta and Rei took on a new house guest.
He was Yoshimune, the son of Kouta's father's boss.
They had an extra room to spare and he would only be staying
for one month. Kouta and Yoshimune were classmates.
It seemed a convenient arrangement.

Yet it created an instantly sour feeling in Kouta.

... Yoshimune was staying home with his mom a lot.

... Yoshimune was always leering at his mom's ass.

... At family dinner Kouta was completely ignored.

... His mother was acting strange these days.

What was this weird feeling? Kouta couldn't say for sure,
but he wanted Yoshimune out of the house.
Meanwhile, Yoshimune was starting to call Rei "mama".
Furthermore, as the son of his father's boss,
it was difficult to oppose Yoshimune without risking
Kouta's father's standing at the company.

There was no choice but to suffer the interloper...

A 53 page full color manga by Karasu Akitsuki