"Even the clan head knows about this?" Kaida asked.

"This is bigger than you think. For now, you don't need to know more," Shisui replied.

Kaida made an expression of deep thought, even though he knew exactly who he was going up against.

After a moment, Kaida said, "Okay, brother, I'll keep your warning in mind."

"But now that you're safe, try not to be tense all the time. Relax a bit," Shisui said, patting Kaida's back with a smile.

"Okay, brother," Kaida replied with a smile as well.

"Oh! Today's your first day as a general practitioner at the hospital, right?" Shisui asked.

"Yes, brother," Kaida confirmed.

"Don't be nervous. You've got such a genius brother—no doubt you've inherited some of my qualities since we're related," Shisui said with a silly grin.

"Right. I should be worried about this disease of overconfidence. I might catch it," Kaida said with a serious expression.

"Exactly! You'd better watch out, or one day someone might beat you for mocking them," Shisui said, twisting Kaida's ear.

"Ow, ow, ow! I'm sorry, brother!" Kaida said hurriedly.

"Hahaha, now go, or you'll be late! I'm sure your sensei won't appreciate that," Shisui said.

"Right!" Kaida responded, dashing off toward the hospital.

Since Kaida had spent time strolling with Shisui, he was already running late. With only five minutes left before the hospital opened, he decided to use the Wind Instantaneous Movement Jutsu to get there on time.

Unauthorized duplication: this narrative has been taken without consent. Report sightings.

Fortunately, he made it just in time.

"Good morning, ma'am," Kaida greeted the receptionist.

"Good morning, Kaida. Congratulations on your first day as a general practitioner," the receptionist replied.

"Thank you. Has sensei arrived?" Kaida asked.

"No, you know how she is. She'll take her time getting here," the receptionist replied.

"Then I'll wait for her," Kaida said.

"Okay, see you later," the receptionist said before returning to her work.

Kaida headed to Mitsuru's office and waited silently. Normally, she would arrive 15–20 minutes after the regular time (typical for a Nara). But by 9:00 AM, she still hadn't arrived, and Kaida was starting to get a little restless. Fortunately, she walked in at that moment.

"Oh! How long were you waiting?" Mitsuru asked, glancing at Kaida.

"Not long. Good morning, sensei," Kaida said, standing up.

"Well, I was busy doing something for you, so you could wait a little longer," Mitsuru said as she entered her office, gesturing for Kaida to follow.

"What do you mean by doing something for me, sensei?" Kaida asked.

"I was at the Hokage's office getting your certificate ready," Mitsuru said, looking tired.

"Why did you go there personally? Someone else could've done that," Kaida asked, surprised. Since Mitsuru was the chief medical ninja at the hospital, she didn't need to handle such tasks, as she held power equal to that of a clan head.

"Normally, I wouldn't have to go, but the old man was busy. He didn't even look at your certificate, so the chances of you getting it today were very low," Mitsuru explained.

"So?" Kaida asked.

"I promised I'd give you both your card and reward today," Mitsuru said.

"You went to the Hokage's office just for that?" Kaida asked in surprise.

"Yes. Now, tell me what you want," Mitsuru said, placing Kaida's card on the table.

"Thank you very much, sensei," Kaida said, picking up the card.

"It's nothing. Now, what's your reward?" Mitsuru asked, a small smile playing at the corners of her lips.

"Sensei, yesterday I went to the library to look for a reward, and I found out about a jutsu used by Tsunade-sama. I was fascinated by it," Kaida said.

"What's the name of the jutsu?" Mitsuru asked.

"Mitotic Regeneration Jutsu," Kaida replied.

"Nope. Go find something else," Mitsuru said, returning to her paperwork.

Kaida was baffled by her sudden change in behavior. He looked confused and asked, "Sensei, can you at least tell me why I can't learn it?"

"Simple. You don't have the necessary foundation. To learn that jutsu, you need to master both medical jutsu and fuinjutsu—not just the basics, but at a specialist level in medical jutsu and as a seal master in fuinjutsu. Both will take time, so it's better to focus on something else for now," Mitsuru explained.

Kaida sighed in relief, understanding the reason. At least the jutsu wasn't forbidden, just extremely difficult to learn.

"Sensei, if I meet those requirements, can I learn it?" Kaida asked.

"Why are you so fixated on that jutsu? It's great, but not many people can learn it. Even I don't know it fully, just the basics. Maybe only Lord Third can teach you the full jutsu, as he knows more about it than I do," Mitsuru said.

"I'd be satisfied just learning the basics," Kaida said.

"Fine, but I'm not teaching you fuinjutsu," Mitsuru said.

"Thank you, sensei," Kaida replied.

"Don't count your chickens before they hatch, Kaida. It's still not guaranteed you'll be able to learn that jutsu," Mitsuru said, shaking her head.

"Just getting the chance to learn it is enough for me, sensei," Kaida said with a broad smile.

Mitsuru nodded.

"Sensei, why are you still doing paperwork? Didn't you say you won the bet and don't have to do paperwork for the next three months?" Kaida asked.

"I'm not doing paperwork. I'm just sorting the work they'll be doing. No way I'm letting them off the hook! I finally have time to refine my medical jutsu, and I'm going to make the most of it," Mitsuru said with a devilish smile.