It is a mainstream shounen manga/anime (like Naruto or One Piece ); instead, it falls under eroge / adult visual novel or hentai OVA categories.
The visual novel excels in atmosphere. The art direction typically features bright, washed-out sunlight, the sound of cicadas (semi), and imagery of festivals (matsuri), fireworks (hanabi), and the ocean. This serves as a deliberate contrast to the intense, internal emotional changes the protagonist is undergoing. The setting emphasizes that this period of freedom is temporary, creating a sense of urgency (mono no aware) in the romance. shounen ga otona ni natta natsu 1 f1dbe2701 fixed
Ryuuki deeply admires Reiko, viewing her as the most important person in his life. To ease her burden, he feels a strong desire to mature quickly. It is a mainstream shounen manga/anime (like Naruto
The "becoming an adult" in the title is not a triumphant sports victory or a first confession of love. It is a slow, painful realization of economic reality. This serves as a deliberate contrast to the