Its vigorous, pulsating beat has never waned since the beginning of time, bestowing valor and courage to any who wish to live through even the darkest of times.
Can only be obtained after clearing Chapter 1 (115) Quest: In Search of Lost Treasures, which presents the player with a riddle to solve, seen below:
Researcher: A man thinks the skies demand to hear the palpitations of a heart. Thump, thump, thump...
Vyrn: What could that mean...
Lyria: So we need to make friends with some animals?
Sierokarte: Hmm... I don't think that's what "beast" refers to in this situation...
After completing Chapter 1 (115) Quest: In Search of Lost Treasures, use a 5★ Story SR character to clear their respective island's Showdown boss with a Chain Burst attack. (Only needs to be done once, and the party should be your main character plus Story SR character only.) There are three possible ways to do this: