Luke didn't actually expect a reward from Takagi, even if the latter had given Luke his card and called him his lifesaver.
He knew very well what the Japanese were like.
The people of this country were modest, trustworthy, polite, and respectful, and attached great importance to social hierarchy.
However, they also had the potential to overturn anything that stood above them, and might burst out on a rampage and turn into bloodthirsty beasts that weren't bound by any sort of code of conduct.
They also recorded their deeds and passed them down as tales through the generations.
They were a highly complicated and controversial people.
Thus, Luke didn't expect much from Takagi. While the man had bowed to him, it might have been out of polite habit, and didn't necessarily mean that he really thought highly of Luke.
