Actually, this isn't their flaw. In terms of Chakra amount, they have much more than ordinary ninja of the same age. They just possess means far beyond their current level, making it seem like they lack Chakra.
"Fire Release: Great Fireball Jutsu!"
Obito didn't form any hand signs. In his Breath of Flame Chakra Mode, he effortlessly created the Chakra for a Great Fireball and spat out a high-temperature fireball.
With too many enemies present, Obito didn't dare to waste Chakra, so he used the relatively less consuming Great Fireball.
This hand-sign-free Great Fireball took Biwa Juzo by surprise. However, no matter how much time the Great Fireball saves, its speed isn't fast, and Biwa Juzo easily dodged it. He also used his Decapitating Carving Knife to knock away the ninja tools thrown by Ebisu and the others.
"Too weak." Ebisu clenched his fist, feeling a strong sense of powerlessness.
Right now, he truly understood what it meant to be willing but powerless. He wanted to help Kakashi relieve some pressure, but if he recklessly charged forward, it would only add pressure to Kakashi, because they were too weak, too easily hurt, or killed.
The best outcome for them was to stand in a safe place and use Ninjutsu or ninja tools to support Kakashi and the others.
To relieve Obito's pressure, Nohara Rin stepped forward to face Biwa Juzo, allowing Obito to focus his efforts on Munashi Jinpachi and the Hidden Mist Jonin.
Nohara Rin didn't have the strength that Kakashi and the others did, but with the support of Shiranui Genma and Ebisu, temporarily holding off one person wasn't a problem.
Because he was in the Transparent World, Kakashi could observe the state of the battlefield well.
"This truly is an unprecedented moment of crisis." Cold sweat dripped from Kakashi's forehead.
The battle had just begun, yet they were already at a great disadvantage.
Even though there was still a member of the Seven-Swords Ninja yet to strike, they were almost at a dead-end.
With the Four Gates, Might Guy couldn't gain an advantage over Jinin Akebino, and even with Kakashi's full effort, he couldn't benefit after Kurosuki Raiga became cautious.
Shisui was struggling to cope with the combined assault of Kuriarare Kushimaru and Suikazan Fuguki, in a very dangerous position.
With Obito in Breath of Flame Chakra Mode and the assistance of Nohara Rin and the others, they could barely hold off the joint attacks from Biwa Juzo, Munashi Jinpachi, and the Hidden Mist Jonin.
The remaining members of the Seven-Swords Ninja didn't even need to act; they only needed to hold out for a while longer for Kakashi and the others to not be able to withstand the pressure.
Moreover, looking at that last member of the Seven-Swords Ninja, it didn't seem like they were on standby. Their ninja blade was radiating Chakra light, seemingly charging up for an attack.
This situation could truly be called a dead-end.
"Eight Gates, Fifth Gate, Limit Gate, open!" The situation was too critical for Might Guy to think too much, so he directly opened the Fifth Gate of the Eight Gates, causing his Chakra to surge again.
"Leaf Strong Whirlwind!"
Might Guy's powerful kick forced back Jinin Akebino, whom he was entangled with, then he burst forward at speed towards the embattled Shisui.
Facing the two opponents, Shisui was already in a sorry state, with several cuts from the Long Blade Sewing Needle's steel wire on his body.
Aohire Karei immediately aimed the Twinsword Hiramekarei at Might Guy, firing a Chakra Light Ball.
"Guy, watch out!" Kakashi immediately warned Might Guy as soon as he detected the attack.
Whoosh!
Chakra exploded from Might Guy's feet, leaving an afterimage behind as he shot forward like a streak of green light.
BOOM!!
The Chakra Light Ball exploded violently as it hit Might Guy's afterimage, leaving a large crater amidst the swirling dust.
Kakashi frowned slightly. At this level of attack, unless one covered most of their body with Armament, they would surely sustain heavy injuries.
Now, thanks to the Transparent World, he could not only dodge himself but also alert his teammates in time. However, once he no longer had the strength to maintain the Transparent World?
Kakashi wasn't one to bet on uncertain outcomes, but he realized that their only chance for survival was if the commotion here was noticed by a powerful Konoha ninja.
It wouldn't suffice for any Konoha ninja to notice; it had to be a powerful one. Otherwise, it would be pointless to be found.
"That serrated blade can absorb Chakra. We have to counter it with pure Taijutsu," Shisui gasped, reminding everyone.
If it weren't for his Three Tomoe Sharingan combined with his outstanding Instant Body Jutsu, a regular Konoha Jonin would have likely perished under the joint attack of the two long ago.
Might Guy nodded, memorizing the information, and then pushed his Breath of Rock to the limit, unleashing his full strength to launch a Tornado Kick at Suikazan Fuguki, forcing him to retreat.
Shisui vaguely guessed Might Guy's plan and, despite being exhausted, did everything he could to hold off Kuriarare Kushimaru.
With Might Guy now in the Fifth Gate of the Eight Gates, he was undoubtedly the strongest in their team and the most likely to defeat a member of the Seven-Swords Ninja. Shisui needed to create an opportunity for Might Guy.
Might Guy felt an unprecedented urgency. He had to quickly defeat a member of the Seven-Swords Ninja; otherwise, without external aid, it would be a certain death situation.
Jinin Akebino, having been forced back, didn't chase after Might Guy. Instead, he went for Kakashi, who was the closest. Now Kakashi was the one under the pressure of being surrounded and attacked.
Fortunately, Jinin Akebino was a type Kakashi was better at dealing with. Jinin Akebino was strong, but if his attacks couldn't hit, then his strength was meaningless.
With the aid of the Transparent World, Kakashi didn't quickly fall into a severe disadvantage, although he shifted from offense to defense.