[Nimanima Honpo (Tokiwa)] Jar (R-18 ver.) (Osomatsu-San)

A provocative R‑18 doujinshi titled ‘JAR (R‑18 ver.)’ follows the Matsuno brothers as they engage in a chaotic, incestuous encounter ignited by a mysterious jar, with one brother assuming dominant control over the others. The narrative mixes comedic taunts with intense, explicit moments that highlight the characters’ muscular bodies and the tension of forbidden desire. Set within the Osomatsu‑san universe, the fanbook delivers a daring threesome story that pushes the limits of yaoi and group anal content.