Open the Door, Brother, It's Your Sister

Gojo Yuri, the biological younger sister of the new Six Eyes bearer, was the center of attention from the moment she was born.

“Which technique will my little sister awaken?” Gojo Satoru calmly watched the baby sleeping in her cradle, then looked up at the attendant beside him.

“W-We don't know either...”

But at the time, no one in the Gojo family imagined that the Six Eyes bearer's little sister would have a technique just as terrifying and formidable.

[Gojo at 16]

“My little sister? Hah? I'm an only child!” The boy in sunglasses leaned back as the little girl clung to his arm.

“B-Big brother...”

Gojo Satoru paused. “You're so cute, so I guess I could take care of you.”

**

“This is my little sister, Gojo Yuri. None of you have one, do you?” Gojo Satoru held up the little girl, all short arms and legs, showing her off to his two classmates.

“Sa-Satoru...” My neck... you're choking me...

[Gojo at 20]

“Since Yuri-chan is here, she must want to be her big brother's very first student, right?”

Seven-year-old Gojo Yuri pointed at herself in confusion. “...Me?”

[Gojo as her biological older brother]

“So I wasn't the first person Yuri called ‘Big Brother’?”

Watching her brother sulk, Yuri sighed like a little old lady and expertly soothed him. “But you're my favorite big brother.”

He was appeased.

“That's more like it.” Gojo Satoru struck a proud pose, then sighed as he looked at the grown-up Yuri. “I didn't get to be there while you were growing up...”

[Gojo at 27]

[Gojo at 28]

[Gojo as the Divine Child]

**

The heroine's technique is time regression. She transmigrates through different timelines and parallel worlds, and her brother raises her. Pure child-rearing story, so there's no romance.

Theme: Care for the flowers who are still minors.