can anyone who is a danganronpa fan in this subreddit check and verify if the "one more time lets do it one more time!" sample in heartbeat actually comes from chiaki nanami

me and a friend were discussing where could the "im talking real dollars and cents here" sample and "one more time lets do it one more time!" sample come from, and then they bought up that in a stummy concert someone pointed out that the ending sample in heartbeat comes from danganronpa. tried searching everywhere in the internet and i couldnt pull up any results but im pretty sure anyone who is a fan of the series or the character would know