Can't Think of One

One day, Kakashi discovered his inability to integrate Lightning Release Chakra into the Rasengan, so he created another Ninjutsu, which is Chidori.

However, Chidori's shortcomings are also quite obvious.

Until yesterday, Kakashi met Koki and unexpectedly discovered that this technique, when combined with the Sharingan, was a perfect match, because the Sharingan could anticipate the enemy's every move.

However, the Chidori's destructive power seems somewhat insufficient.

After a day of research, Kakashi finally developed a Ninjutsu even more powerful than Chidori. He hoped to pass this technique on to Koki, wishing him to like it and hoping that it could protect him.

"Huh?" Koki froze, blue electricity... an upgraded version of Chidori... isn't that just Lightning Blade?

Lightning Blade was Ninjutsu that Kakashi taught to Sasuke during the Chunin Ninja Exams. Koki still remembers the origin of the name Lightning Blade, which is because Kakashi once used this technique to cut through the lightning in the sky.

How did I end up naming myself out of nowhere?

"Koki?" Kakashi asked, puzzled, seeing that Koki hadn't spoken for a while.

"Huh? Oh, let's call it Lightning Blade!" Koki said, coming back to her senses and sounding a little guilty.

"Lightning Blade?" Kakashi's eyes gleamed with joy. "A wonderful name!"

As expected of Koki, the name she chose perfectly matches the characteristics of this Ninjutsu.

"Then, can I teach you tomorrow?" Kakashi asked cautiously.

"Of course, no problem." Koki readily agreed.

"Good!"

Kakashi sounded very happy.

"By the way, why did you and Uncle Sakumo come to our house today?" Koki asked curiously.

"I went home after completing my mission." Kakashi paused. "As for my father? I don't know much about him either; he came back with Fugaku."

"Okay." Kakashi mentioned going home so naturally that Koki almost thought it was his home.

"Where Obito-nii and Shisui? I haven't seen them." Koki was hoping to see how scared Obito would be when he saw Fugaku, but he hadn't seen them at all.

"They're cooking in the kitchen. Chief Fugaku didn't let me go over. Actually, I can cook too!" Kakashi's tone was filled with grievance and regret.

"Okay, okay, I'll definitely try your cooking next time." Koki quickly soothed Kakashi, jokingly adding, "Shall we go check out the kitchen? Obito-nii, don't blow it up again!"

"Good."

The two walked towards the kitchen, one after the other.

"Obito-nii!" Koki shouted before even reaching the kitchen door.

"Koki, you're back!" A playful black head immediately peeked out from the kitchen. Obito wasn't wearing his goggles at home. He ignored Kakashi and greeted Koki with a smile.

Hearing the noise, Shisui came out of the kitchen, her bright eyes widening with joy. She waved the long-handled spoon in her hand at Koki and said, "Koki, why are you so late today? Are you tired? Go take a shower and relax. I've already prepared the water for you, but I don't know if it's cold yet. Shall I refill it for you?"

Koki stared at Shisui's opening and closing mouth, completely ignoring what he was saying, because he looked just too adorable!

The little boy in front of me was wearing an adorable pink bear apron embroidered with delicate little flowers. His slightly curly hair shimmered under the light, and his cheeks were flushed, probably from the steam in the kitchen, which made his face appear even more refined.

"Koki, what are you daydreaming about?" Obito held up five fingers and waved them in front of Koki's eyes.

"What?" Koki was caught off guard and took a step back in fright at Obito's action.

"Shisui asked if you wanted to take a bath, and he's already prepared the water for you," Obito patiently repeated. "What are you daydreaming about?"

"This apron... it's so cute!"

Upon hearing this, Shisui blushed, her gaze darting away. She said shyly in a low voice, "This apron was prepared by Auntie; it's my first time wearing one."

Kakashi glanced at the apron but didn't say a word.

Obito casually remarked, "Yeah, it's so cute! I'd like to wear one too, but unfortunately I don't have one."

With Koki vivid imagination, Mitsuki instantly conjured up a comical image of Obito wearing an apron, and couldn't help but nod, chuckling, "Don't worry, I'll definitely talk to Mom and buy you one too, so you can wear it as you wish."

"Great!" Obito cheered, completely oblivious to the teasing in Koki's words.

"Idiot!" Kakashi couldn't stand Obito's stupidity any longer and mocked him.

"What! Kakashi! Say that again!" Obito stormed up to Kakashi.

Seeing that the two were about to clash, Koki immediately squeezed between them, separating them, and asked Obito with a smile, "Obito-nii, what did Shisui just say? I didn't hear it clearly."

Obito's attention was successfully diverted by Koki, and he completely forgot that this was the second time he had repeated himself. He touched his hair and asked in confusion, "What did I say?"

Koki secretly breathed a sigh of relief, then turned to look at Kakashi, only to find that Kakashi had been watching him intently. When he saw the look in his eyes, Kakashi paused for a moment, then smiled with his eyes crinkling.

"Oh right, he asked if you wanted to take a bath!" Obito suddenly stopped what he was doing and said excitedly.

"I'm not washing yet, I want to see what you guys made!" Koki replied with a laugh. "Obito-nii, you're not going to blow up the kitchen, are you?"

"No way!" Obito retorted, bristling with anger.

Seeing Obito's humiliated expression, Shisui finally couldn't help but laugh out loud. "Koki, stop teasing Obito-nii- nii. I'll go run you another bath." He then tried to take off his apron, but Kakashi stopped him.

"Kakashi-senpai?" Shisui looked at Kakashi with a puzzled expression.

"I'll go put it away. You should go check the kitchen first." Kakashi glanced meaningfully at the spoon in Shisui's hand.

"Ah! My fish!!" Shisui suddenly realized, screaming as he ran into the kitchen.

"Hahahahaha." Koki laughed loudly.

Despite feeling very sorry for Shisui, Koki couldn't help but laugh when she saw Shisui, who was usually mature and composed, seemingly able to overcome any difficulty and solve any problem, showing such a childlike Shisui.

Koki's smile was like the rising sun in spring, warm and dazzling. The corners of his mouth were slightly upturned, his eyes curved into crescents, and two shallow dimples appeared on his cheeks, making him look incredibly cute.

Whenever he smiles, the whole world seems to brighten up; his smile seems to have a magical power to dispel people's worries and sorrows.

Seeing Koki smiling so happily, Kakashi and Obito couldn't help but stare at him in a daze.