Overflow

Originally serialized as a web manga under the title "Jitsu wa Ima Haittemasu....: Ofuro de Onii-chan no Katai Are ga...", this adult romance series explores the forbidden and deeply intimate relationship between siblings. What begins as an unexpected encounter in the bathtub quickly escalates into a passionate affair that defies familial boundaries. Despite knowing they should not be crossing such lines, the overwhelming physical sensations draw them closer together, leading to repeated secret encounters where suppressing their emotions becomes impossible. The story is structured across seven volumes, each highlighting different facets of the sisters' evolving desires and taboo experiences. From their initial hidden encounters to beachside indiscretions, voyeuristic situations, and costume-themed scenarios, the narrative follows their increasingly intense connections. The manga was simultaneously released in a long-strip format optimized for mobile reading, with each chapter divided into three distinct episodes to accommodate digital audiences.