Naruto: They Have Systems

Watching Uchiha Mikoto walk up the tree trunk with ease, Kushina Uzumaki felt fired up. She assumed it would be simple.

She gathered chakra in her feet and pushed off with enough force to stir a gust of wind.

Her foot struck the trunk, leaving a dent, and she ran straight toward the top.

With too much chakra flowing into her feet, the trunk creaked under every step.

Halfway up, Kushina realized she couldn't keep her footing. She slipped and fell from the trunk.

"Ah! Help!"

Kushina cried out instinctively.

Uchiha Yin was already standing beneath the tree. He moved even faster than Tsunade, who had just been about to help, and caught Kushina securely in his arms.

When Kushina saw that Yin had caught her like a princess, her cheeks flushed.

"That was my mistake. Again!"

Unwilling to give up, Kushina pulled away from Yin, returned to the trunk, adjusted the force she used, and tried walking up it again.

Chakra control wasn't easy to master. She still used too much force and fell from the tree again.

Yin caught Kushina once more.

"Again!"

Kushina blushed, but refused to admit defeat. She took her place before the trunk again.

Half an hour later, Yin realized this training exercise was a perk in disguise. Kushina kept falling from the tree, and he kept catching her.

At first, Kushina had been frustrated. Eventually, falling became routine. Lying in Yin's arms left her strangely shy, but she also felt deeply safe.

The force with which she stepped on the trunk grew weaker and weaker, until Yin was catching her almost as soon as she set foot on it.

Kushina realized she had grown attached to Yin's embrace. It was warm, safe, and comfortable.

After Yin caught Kushina yet again, Mikoto, who had