Aside from Satoru, none of the teachers were interested in the shipwreck. As for Satoru, who was interested... he was flat-out refused entry to the competition.
Shin spoke up to provide a hint, "I'll be adding a few little surprises. Make sure to keep an eye on your surroundings. Also, as soon as anyone chokes on water, I will immediately transport them back to the shore to start over. That's about it."
The others exchanged glances and immediately jumped into the water.
Shin sensed the location, the box was forty meters deep on the seabed. It was quite deep, and getting hold of it wouldn't be easy.
Yuji and Maki, having the best physical stamina, took the lead and charged ahead. Behind them were Megumi, Noritoshi with Flowing Red Scales activated, and Rin, who was using paper to create propellers. Further back was Panda, whose physical size severely hindered his speed, while Aoi followed slowly behind.
Kasumi, Mai, and Momo knew they lacked the strength and just watched from the shore. Mechamaru was unable to participate due to his damaged arms, and Toge's strength was greatly diminished since he couldn't speak underwater, so he didn't enter the water either. Nobara knew there was no point in such a competition. If she just asked Shin, she could see the seabed scenery whenever she wanted.
Yuji was just about to touch the shipwreck when two Drowned wielding tridents suddenly lunged from the side. However, their attack intensity had been modified by Shin. They would only cause pain, not bleeding, and certainly not serious injury.
Caught off guard, Yuji was struck by a trident. He couldn't help but open his mouth in pain and was immediately transported back to the shore.
"Damn it! Again!"
Yuji splashed back into the water, but at this moment, Aoi began to show everyone how it was done. He clapped his hands underwater and swapped positions with one of the Drowned.
Yuji, who had just swum near Aoi: ?
However, having gained experience from last time, Yuji punched the Drowned right in the face and used the recoil to quickly dive deeper. The Drowned let out a strange cry and quickly followed.
In fact, the person with the greatest advantage was Panda, because as a Cursed Corpse, he didn't need to breathe at all. He didn't need to worry about choking on water and having to restart, he just had to charge downward with all his might.
However, there was a fatal disadvantage: his whole body was made of cotton.
He had to cover his entire body tightly with Cursed Energy to prevent it from absorbing water. Otherwise, his body weight would rapidly increase, affecting his movement.
As for Aoi, who had swapped positions with the Drowned, he quickly bypassed Maki and tried to dive straight into the shipwreck.
While resisting an attack from the other Drowned, Maki grabbed Aoi's ankle, trying to pull him out. Since Aoi was halfway inside the shipwreck, he couldn't exert force and was temporarily held back.
As the two were fighting, the three people behind them, including Noritoshi, also arrived near the shipwreck.
Blood Manipulation: Slicing Exorcism!
Origami Manipulation: Paper Cut!
The two from the Kamo clan activated their Cursed Techniques simultaneously. A red and a white shuriken rushed straight toward the shipwreck, it seemed the two wanted to break open the shipwreck to find the location of the box.
The idea was sound, but they overlooked that attack power is greatly reduced underwater. Not to mention blood, which dissolves in water, or paper, which softens in water—both were weakened even more severely. The two seemingly intimidating attacks didn't cause enough damage, merely leaving two deep marks on the ship's hull.
Because Maki and Aoi were moving so violently underwater, their oxygen consumption skyrocketed, and both of them soon choked on water and were transported back to the shore.
The two caught their breath, exchanged glances, and jumped back into the water.
Aoi quickly activated Boogie Woogie to swap his position with Rin.
After reacting, Rin's first priority wasn't to dive deeper but to poke his head above the water to breathe, while also replenishing some paper he had left on the shore, before diving back down.
Megumi, having stayed underwater for too long, was also running low on oxygen.
Meanwhile, Noritoshi's Blood Manipulation allowed him to change the concentration of various substances in his blood, so he could provide oxygen to himself and didn't have this concern.
Megumi weighed the pros and cons, then voluntarily choked on a mouthful of water to return to the shore, recovered his condition, and rejoined the scramble.
By this time, the shipwreck was battered and broken from everyone's continuous attacks, revealing the wooden box inside.
Megumi immediately summoned Nue underwater for three seconds, ensuring damage while also keeping the Shikigami from being damaged.
The electric current immediately caused those nearby to feel pain and hindered their movements.
Megumi seized the moment and charged toward the box, but was immediately swapped out of his position by Aoi.
For a time, various Cursed Techniques flew wildly underwater, and people were constantly being transported back to the shore only to rejoin the battle. The wooden box sustained cracks during the fighting, and before long, it was shattered.
After leaving the wooden box, the Heart of the Sea floated upward and soon reached the water's surface, with a string of Jujutsu Sorcerers chasing after it.