Hinamatsuri  

ヒナまつり, Hina Festival, ひなまつり, Hinamatsuri (TV)

Yoshifumi Nitta was enjoying the acquisition of a rare vase for his collection when he was abruptly interrupted by an unexpected capsule that landed on his head. Upon opening it, he discovered a young girl named Hina with extraordinary abilities. Despite her reluctance to divulge any personal information, she revealed that she possessed immense powers and would explode if they remained unused. Faced with no other choice, Nitta became her caregiver. He asked Hina for assistance in a construction deal, which proved successful. However, while this was happening, his boss's rival yakuza group covertly attacked him. To his shock, his colleagues later pinned the blame on him. Determined to seek revenge, Nitta prepared himself and traveled to their hideout. But before he could act, Hina unexpectedly appeared and assisted him in wiping out the entire group. It turned out that Hina might become a valuable asset to Nitta's yakuza business, as long as she did not use her powers on him first. Thus, the unusual life of this duo began.