After a day of rest, Kaida went to the hospital. When he arrived at the area where he normally treated patients—which was also where the Chief worked—he was shocked to see the long line of patients waiting for him.
Sure, there were many professional nurses in the hospital, and Kaida was just a new one, not as experienced as them, but since he wasn't charging much, the number of people coming to him was significant. And since he had taken a day off, the line had only grown longer. Seeing the Chief smiling at him, Kaida smiled wryly, greeted him, and then made three shadow clones to help treat the patients.
It was easily the most hectic day Kaida had experienced in the hospital.
After treating patients until 4:00 PM, Kaida returned to the Uchiha compound with a question on his mind.
'Why haven't I tried all the spiritual medicines by now?'
Kaida went to the clan headquarters and bought all the spiritual medicines available, such as the Focus Pill, Spiritual Empowerment Tonic, and Harmony Restoration Elixir.
For the Focus Pill and Spiritual Empowerment Tonic, Kaida only needed to take them before sleep, but for the Harmony Restoration Elixir, he had to take a medicinal bath after consuming the elixir. The medicines for the bath came along with the elixir.
Today, he decided to use the old and trusted Focus Pill. After some light training and dinner, he took the pill, meditated for an hour, and went to bed.
The next day, Kaida woke up at 6:00 AM feeling great. After completing his morning routine, he went to the garden to check whether he had made any improvements. Satisfied with the results, noting that the Focus Pill's efficiency hadn't decreased and his mental capacity had increased, he went to get his tea and breakfast before heading to the hospital.
With his rising popularity, the number of patients Kaida had to treat daily kept increasing. Some of them even came just for a free check-up or for minor injuries. Without the option of free treatment, these individuals likely wouldn't have sought medical care at all.
But Kaida's main goal wasn't earning money—it was building his reputation—so he treated everyone who came to him. To save time and energy, he made a shadow clone to handle patients without major problems, while he personally treated those who needed more attention. While typical nurses handled 10-12 patients daily, Kaida found himself treating over 70 each day.
After treating patients until 4:00 PM, Kaida returned home.
He found Shisui training in the garden, using the Body Flicker Jutsu repeatedly. Seeing this, Kaida recalled a famous saying from his past life:
'I fear not the man who has practiced 10,000 kicks once, but I fear the man who has practiced one kick 10,000 times.'
Kaida went to the garden and sat there, watching.
"Do you have something you want to ask?" Shisui inquired after noticing Kaida observing him.
"Yes, brother. I wanted to ask if you still use supplements like the Focus Pill and Spiritual Empowerment Tonic," Kaida asked.
"No, they don't have any effect on me now, though there was a time when I used them weekly like many other Uchihas. However, I still use the Harmony Restoration Elixir, which helps improve the coordination between mind and body," Shisui explained.
"After how long did the medicines stop working for you?" Kaida asked.
"Maybe after about two years. Though their effect started to decrease after 10 uses, I think. Why do you ask? Are you starting to use them?" Shisui responded.
"Yes, brother. So far, I've only taken a Focus Pill, but I plan to drink the Spiritual Empowerment Tonic tonight," Kaida said.
"Oh! Then you'll be in for quite a surprise tomorrow," Shisui remarked with a mysterious laugh.
Kaida knew that Shisui wouldn't reveal anything more, so he left him to train and headed to his room to rest. On his way back, Kaida made shadow clones to continue training on Memory Extraction. He meditated at home until nightfall.
After eating dinner, Kaida drank the Spiritual Empowerment Tonic and meditated for an hour before going to sleep.
...
The next morning, Kaida woke up and noticed something different—just like when his Sharingan was active.
'Why did it activate on its own?' Kaida thought, then remembered Shisui's words:
'You'll be in for quite a surprise tomorrow.'
'Does that mean my Sharingan activated on its own because my spiritual power increased? Well, since activating it requires increasing the spiritual power around my eyes, this does make sense. But now, how do I deactivate it?' Kaida wondered, as no matter how much he tried, it remained active.
At last, he decided to go to Shisui's room. Since it was only 5:00 AM, Shisui should still be in his room.
*Knock knock.*
"What happened, Kaida?" Shisui asked with a mischievous smile.
"You already knew about this, right? Sigh... Can you please tell me how to deactivate my Sharingan?" Kaida asked.
"There's no special way. Just give it some time to adjust, and it will deactivate automatically," Shisui replied.
"Are you sure?" Kaida asked again.
"You're asking a professional. Don't question my advice," Shisui said, pretending to be angry about Kaida's doubt.
Kaida shook his head, thanked Shisui, and returned to his room. He began meditating to help his body adjust to the increase in spiritual power, but he was surprised once again.
'My chakra reserves have increased too. This medicine is amazing,' Kaida thought, feeling the boost in both his chakra reserves and mental capacity.
After meditating for an hour, Kaida's Sharingan deactivated on its own. He finished his morning routine and headed downstairs.
"You can stabilize your Sharingan this early? Looks like starting later has its benefits," Shisui commented.
"What do you mean?" Kaida asked, sipping his tea.
"Well, when I first took that medicine, I had a one-tomoe Sharingan, and it remained active for four hours. It was still active even when my eyes started hurting. You sure had it easy," Shisui sighed.
"Oh! Did you use the Spiritual Tonic?" Hae asked, joining the conversation.
"Yes, Aunt," Kaida replied.
"Then you must be quite hungry. Let me make you something nutritious," Hae said, heading to the kitchen early to prepare something extra.
Kaida knew he couldn't stop her, so he didn't even try.
"So, are you planning to take the Harmony Restoration Elixir today?" Shisui asked.
"Yes, brother. I asked the receptionist about it, and he said it won't cause any problems," Kaida replied.
"Problems? It's actually recommended to use it after the Spiritual Empowerment Tonic. It'll be most beneficial now," Shisui said.
"Then I'll be sure to take it after coming back from the hospital," Kaida said.
"Great," Shisui responded.