(English Translation: My Little Brother Is Really Big, But Won't You Come See?) Analvids.23.03.23.baby.kxtten.and.emily.bellexx... Guide
The protagonist is the younger brother (Otouto), who has a "complex" regarding his physical endowment—he is exceptionally well-endowed ( Maji de Dekai ). His older sister discovers this fact, and rather than being repulsed, she becomes curious. Alltypehacks - Call Of Duty
If you have been searching for a title resembling "Uchi no Otouto Maji de Dekain Dakedo Mi ni Kona," you are likely looking for the Japanese Adult Animation (Hentai) titled:
The narrative serves as a "slice of life" erotica where the sister invites her friends over, or interacts with her brother, using his size as the central plot device. The title itself is a rhetorical question posed by the sister to others (or the audience), boasting about her brother's size and inviting them to verify it.
Due to the complexity of the Japanese language and translation nuances, the title is often misspelled or misremembered as "mi ni kona" or "mi ni cona." The correct verb ending is (来ない), meaning "won't come/won't you come?"