يسكن رامي عند بيت جده القريب من البحيرة حتى يتسنى له أن يلاقي العدد من الصيادين المحترفين الذين يتعلم رامي منهم اشياء كثيرة عن الصيد، وفي بعض الأحيان ترمى سنارات المنافسات ويشتد وطيس التحدي حول من يصطاد أكبر سمكة بيد ان الحظ يحالف رامي الصياد الصغير ويكسب في النهاية دوما.

三平 聪明机智，在淳朴乡间成长，与爷爷相依为命，受爷爷钓技薰陶，深谙鱼性，并不断揣摩研究他人钓技，吸收、自创各种独特钓法，并与钓鱼狂—鱼绅同行征服各大溪、川、湖、海，可谓傲视钓界的天才小钓手。

Mihira Sanpei talks with a Tohou accent and is a down-to-earth boy with a cheerful and optimistic personality. However, when it comes to fishing, he becomes very serious and is a youth who enjoys fishing more than anything else. The village where he lives in is a natural environment which provides different kinds of fishing challenges. Despite his lack of experience, Sanpei has a first-rate sense with regards to fishing and decides to maxmise his potential by entering into different fishing contests. As he faces various challenges, he learns to solve difficult problems and learn from his mistakes to the extent that he is able to fish anything out of the waters. Along the way, he encounters all kinds of rivals and companions who increase his experience points and help him in his growth.

Paul (Sanpei en V.O.) est un jeune garçon passionné par la pêche, qui parcourt le Japon et le monde à la recherche de nouveaux poissons à attraper et de nouveaux défis, comme des épreuves l'opposant à d’autres pêcheurs. Il est soutenu par deux pêcheurs professionnels, son grand-père et un mystérieux homme portant des lunettes noires.

Mihira Sanpei parla con un accento di Tohou ed è un ragazzo con i piedi per terra con una personalità allegra e ottimista. Tuttavia, quando si tratta di pescare, diventa molto serio ed è un giovane che ama pescare più di ogni altra cosa. Il villaggio in cui vive è un ambiente naturale che offre diversi tipi di sfide di pesca. Nonostante la sua mancanza di esperienza, Sampei ha un senso di prim'ordine per quanto riguarda la pesca e decide di massimizzare il suo potenziale partecipando a diversi concorsi di pesca. Mentre affronta varie sfide, impara a risolvere problemi difficili e impara dai suoi errori nella misura in cui è in grado di pescare qualsiasi cosa fuori dalle acque. Lungo la strada, incontra tutti i tipi di rivali e compagni che aumentano i suoi punti esperienza e lo aiutano nella sua crescita.

Сампэй Михира — обычный мальчик, который очень любит рыбалку. Он знает, где спрятаться, чтобы рыба его не заметила. Знает, какую удочку лучше всего использовать. У него есть мечта — поймать самую большую рыбу. В поисках новых мест для рыбалки Сампэй встречает новых друзей, которые помогают ему развивать своё мастерство.