She looked at her mother's petite back—her short, golden hair was a little fuzzy because it wasn't dry, a large bath towel wrapped around her small body, revealing only a section of her fair and slender calves and her bare, chubby little feet.

An indescribable shock, a mixture of the recognition that "this is my mom" and the visual impact that "this looks so cute to pet," caused Sera Masumi's rationality to be instantly overwhelmed by some kind of evil impulse.

No way! They're too cute! How can anyone resist?!

As if controlled by some mysterious force, she crept closer, and then with lightning speed, reached out her "wicked" hands and picked up little Akai Mary from behind, even excitedly spinning her around!

"Wow! My little sister from outside this domain! That's such a cool title! From now on, you're my little sister! Let your big sister give you a hug!"

Akai Marie: "!!!"

"Sera Masumi! Let go of me!"

"I won't let go, I won't let go, Mom... no, I mean little sister, please let me play with you for a little while, just a little while. I've always dreamed of having a cute and cuddly little sister to play with."

"What are you playing at! I'm your mother!"

"Mom is the most fun!"

Akai Marie: "..."

She felt like she was about to explode with anger.

A lifetime of illustrious reputation, ruined in an instant.

The younger sister from outside the realm has now made her debut.

............

.............

(Sorry, I won't be able to add extra chapters for everyone during the National Day holiday.)

My grandfather is in poor health and was hospitalized with a heart attack. The doctor said he's too old, and surgery could be fatal. If he doesn't have surgery, he has a few years left if he takes good care of himself. I've been staying with him at the hospital lately, and I'm feeling particularly down.