Chapter 145
"Since this kind of battery doesn't work well, then let's just make a different kind of battery!"
Natsuki was struck with inspiration by the word "battery."
If the Yin Fūin (Yin Seal) is a long-term storage battery for chakra but inconvenient for immediate use, then why not create a new kind of battery? One that can store chakra at any time and be used at any time?
Come to think of it, the Bijū (Tailed Beasts) are essentially oversized batteries.
And the reason those batteries work is naturally because of fūinjutsu (sealing techniques). Sealing a Bijū is essentially sealing chakra.
Given that, why not base it on fūinjutsu and create a chakra battery? One that can be charged during downtime and drawn upon when needed. Wouldn't that solve the problem?
Natsuki immediately shared the idea with Tenten.
"If we can make such a battery, you can prepare several in advance. Then you won't have to worry about running out of chakra. But this requires more advanced fūinjutsu. I've gotten a few from Jiraiya, but I haven't mastered them yet... I'll have to find time to ask Kakashi-senpai."
"Natsuki!"
Tenten suddenly interrupted, her eyes sparkling.
"I knew it! You'd definitely come up with a solution. I'm really looking forward to your so-called chakra battery!"
With that, she wrapped her arms around Natsuki's neck and kissed him.