Denji's heart experiment was already over, but Asaba Kotone did not leave so soon.
Elena's heart experiment was scheduled for the next day, and he wanted to stay in the laboratory tomorrow as well, just in case.
Late at night, many people tended to let their imaginations run wild, and Denji could not help overthinking things a little too.
He was somewhat worried about Elena's heart experiment tomorrow.
Although his own experiment had gone very smoothly, and although he had Kotone's assurance, he still could not help feeling a little worried.
Just then, a familiar voice suddenly sounded in Denji's mind.
"You don't need to worry about that human girl at all. The Whip Devil wouldn't dare offend the Gun Devil either, so she'll definitely be fine tomorrow."
Denji recognized the voice as soon as he heard it. It belonged to the Sword Devil.
He froze in surprise, because this was the first time he had heard the Sword Devil's voice since the heart experiment ended.
"You can still talk?"
Denji asked in astonishment.
He had assumed that the Sword Devil's heart fusing with him meant that the Sword Devil had died. He had never imagined that the Sword Devil could still talk to him from inside his body.
Denji's sudden shout in the middle of the night startled Elena a little. She immediately asked in surprise and confusion, "Denji? What's gotten into you all of a sudden?"
Asaba Kotone, however, looked perfectly calm. From Denji's reaction and words, he could tell that Denji was probably talking to the Sword Devil's heart.
"Huh? Oh, nothing. The guy inside my body suddenly spoke to me and gave me a fright."
Denji scratched his head, looking a little embarrassed, but told Elena the truth without holding anything back.
"So that's it..."
Elena