Judging from the results of Suzuki Seimei's testing of "Cash Capability," the ability isn't limited to enhancing inanimate objects—it can also drastically increase the combat effectiveness of living beings, similar to the Chakra Enhancement Technique used by medical-nin in Naruto or the use of Haki in One Piece to boost physical prowess.
Moreover, while Seimei cannot control the rate at which his funds convert to power with surgical precision like Tsunade's chakra control or Rayleigh's expert use of Haki, he can compress and detonate all stored "financial resources" at once for a powerful burst of strength—comparable to Luffy's Gear Second blood-pumping explosion or Might Guy opening the Gates for a final blow.
To make it clearer—imagine financial energy as gas. Standard financial strengthening would be like gradually burning it with a stove, while detonation is akin to blowing up the gas tank.
For example, when Suzuki Seimei invests ¥1,000 of financial power into his arms, they become strong enough to match the base strength of an average adult man and can maintain that boost for nearly a full minute. That's not unlike how Naruto channels Kurama's chakra throughout his body to augment his physical stats.
However, if Seimei detonates the remaining financial energy in his arms, he can land a single punch with power rivaling Sanji's Diable Jambe kick or Lee's Leaf Hurricane at high gate levels. But the cost? That one attack depletes the stored energy, leaving him at baseline strength until he reinfuses cash.
Additionally, the larger the surface area enhanced, the more money it takes to maintain. While ¥1,000 is sufficient for enhancing his arms, to empower his entire body to adult-level strength and speed would require tens of thousands of yen. This principle echoes One Piece's Armament Haki—coating larger areas demands more energy and mastery.
The bottom line? "Cash Capability" is overpowered, but also a money-burning nightmare. Without Suzuki Seimei's absurd wealth, even most salarymen would collapse under the cost, much like how excessive chakra drain can kill a ninja or how only elites like the Celestial Dragons can afford scientific augmentations like Seraphim tech.
…
The next morning, after a luxurious breakfast fit for a noble of Mariejois, Suzuki Seimei and Kurosaki Yuka took the specialized nanny car to Dorobika Paradise.
The weekend crowd had transformed the amusement park into a chaotic sea of people, comparable to the World Nobles' Reverie gatherings or the Chūnin Exams preliminaries.
Among the throng were parents with kids and many young couples exuding the sickly-sweet aura of romance.
To prevent him from getting lost, Kurosaki Yuka carried out her bodyguard-maid duties diligently, gripping Seimei's tiny hand like how Nico Robin once gently but firmly held Chopper back from danger.
"Black, white, red, yellow…" Seimei, ever the observer, hummed those words with a knowing smirk, scanning the scene of miniskirted girls fluttering about with the sharpness of a Byakugan user or Sanji's pervy instincts.
"Seimei-kun! Over here!" called out the trio taking photos with a costume mascot at the entrance. Yoshida Ayumi, Kojima Genta, and Tsuburaya Mitsuhiko waved excitedly.
???
Seimei turned toward the sound, and like a Sharingan activating on instinct, his eyes lit up.
Above the heads of Ayumi and the others floated the familiar "Sign-In" prompt—virtual, glowing characters visible only to him—like the system windows seen by Vegapunk's monitors or a shinobi's enhanced sensory perception.
"I'm coming!"
Seimei sprinted over and gave each child a crisp high-five, activating the sign-in effect.
"Ding! Kojima Genta signed in successfully. Reward: +4 stamina. Claimable anytime."
"Ding! Tsuburaya Mitsuhiko signed in successfully. Reward: +3 speed. Claimable anytime."
"Ding! Yoshida Ayumi signed in successfully. Reward: [Variety Children's Clothing]. Claimable anytime."
Stamina and speed boosts were self-explanatory. Like adding chakra to muscles in Naruto or Rokushiki's Soru, these would raise his baseline abilities—each stat like a leveling system akin to RPGs or the hidden power index in One Piece.
With the newly allocated points, Seimei's stamina and speed each hit level 7—comparable to the average middle school athlete, or perhaps a Genin's first steps into serious combat.
But what truly intrigued him was the newly acquired [Variety Children's Clothing]—his eyes widened with curiosity as he brought up the details.
---
[Equipment: Variety Children's Clothing]
Type: Armor
Rarity: Common
Effect 1 – Adaptive Transformation: Can mimic any type of children's clothing, perfectly fitted to the user's measurements.
Effect 2 – Self-Cleaning: Clothing remains pristine no matter the activity or terrain.
Effect 3 – Auto-Repair: Can fully regenerate from damage over time.
Note: P.S. You can even try women's clothing… shhh.
---
Aside from the comical final note that reminded Seimei of Brook's antics or Master Jiraiya's pervy footnotes, the equipment was quite practical.
While it didn't offer raw defense stats like an actual bulletproof vest or Haki coating, its transformation capabilities meant Seimei could mimic protective gear—like turning it into Kevlar-style clothing or even armored ninja vests, theoretically making it equivalent to combat armor.
If not for the sheer number of people nearby, Seimei would've tested the outfit's versatility right then and there—maybe even reenacting a Sanji suit transformation or a Sailor Moon-style outfit switch, for kicks.
"Seimei-kun, who's this big sister?" Ayumi's curiosity broke his thoughts, her gaze shifting to Yuka.
Before he could reply, Kurosaki Yuka gently stepped forward, her tone as composed as Robin's and her aura as elegant as Boa Hancock's.
"I'm Kurosaki Yuka, Master Seimei's personal maid," she said with a warm smile, bending slightly at the waist.
Unlike her usual formal maid attire, Yuka wore a sleek sports outfit today. Her long, silky hair was pulled into a high ponytail that swayed as she moved—radiating youthful vitality that even Nami would envy.
"Po… Personal maid?!" Genta and Mitsuhiko gasped, clearly shook. They stared at Yuka with awe and jealousy, their minds likely filled with fantasies of being pampered by their own beautiful attendants.
(〃＞д＜)
Dammit! Their inner voices screamed. He gets to wake up with a pretty big sister every morning?! This is unfair!
"But… a personal maid? Isn't that something only mega-rich young masters have?" Ayumi asked, eyes narrowed in suspicion. Seimei looked far too ordinary for someone with such luxury.
Understandably so—back in kindergarten, Seimei wasn't even in their class. They'd only gotten to know him in the past couple months and knew nothing about his real background.
With a sigh and a helpless shrug, Seimei replied, "Don't look at me like that~ My family's just… a bit wealthier than most. My parents work a lot, so they hired Yuka to take care of me."
It was a half-truth, like how Itachi told Sasuke only fragments of reality. But Seimei knew better than to draw too much attention—after all, real power was best used discreetly, just like a shinobi's creed or a pirate captain's secret treasure.