Tamaya Heikichi

Tamaya Heikichi (玉屋平吉, Tamaya Heikichi) is a rather stubborn fireworks-maker residing at Tamaya's Launcher. The king has requested him to help with the firework portion of the "World Reformation Plan", but he's having trouble doing so. He has a wife named Utako and a baby named Tohru.

Hint
If you've found Tamaya, solving the firework puzzle may be a matter of finding a relevant item that will help you figure it out. If you haven't already found it, it may be found by doing something else.

If the firework puzzle is done incorrectly, Tamaya will hand over a Trash Firework. If successful however, the protagonist is presented with Heikichi's Firework and 1 Love.

Obtaining Love PART 2
Roughly a week after the above event, if the protagonist walks by Tamaya's Launcher, an argument about the quality of Tamaya's fireworks can be heard between him and his wife, resulting in her slapping him to calm him down. After calming down, he will forgive her, and after his wife shows her support his passion is seemingly revitalized. After this, the protagonist acquires 1 Love.