Chapter 148: Not a Hero
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Lailah did not think that the conversation was going to end soon so she invited Tsuna and Kazuya to their home despite Natsu's protest. She believed that even though they weren't clear of Kazuya's identity just yet, the fact that he was the hero Raphael's godson was enough for him to be treated as a well respected guest.
Thus, Kazuya and Tsuna were taken to a wooden cabin that was built around one of the oldest trees in the mountain forest. The solar panels on the roof provided electricity for the cabin and various appliances could be seen around the house.
It was said that Natsuhisa Akira had been a hermit-like researcher whose place was in an undisclosed location. From what Kazuya was seeing, it looked like the rumors were true. Natsu's research facility in Kazuya's previous life must have started out from this as well.