Rinku Aimoto

Rinku is an always cheerful and optimistic individual who can sometimes be seen as an oddball, calling even nature her friend, and being able to understand and converse with monkeys.[4] Due to her somewhat airheaded nature, she often gets into odd situations in her interactions with other people. This is often used as a running gag in the game or anime, such as when she loudly calls Maho's athletic body "dynamite" or thinks Michiru has "influenza" when she is called an influencer. Because of this, Rinku may appear to be an unserious person who does not notice the feelings of other people, but she will always take a topic seriously and sincerely if her friends draw her attention to it. Due to her being the poster girl of the franchise, she often displays the leadership skills to bring people together (usually by distributing seashells), a role also symbolized by the etymology of her name.

Rinku has red eyes and medium length blonde hair, with a section put into an overhead braid. She wears a red bow on the right side of her head.