It seems you are referring to the adult visual novel (roughly translated: "Is the reason an unpopular couple does sex training with slutty gals to save the world?" ). Ragnarok Guild Emblem Gif Better Link
"Is the reason an unpopular couple does sex training with slutty gals to save the world?" 2. The Premise (Story) The game follows an "unpopular" (introverted/otaku) couple—a boyfriend and girlfriend—who are virgins. The story takes a turn when they are tasked with saving the world. To do so, they must acquire "sexual skills" and energy. Mhi2-kr-au57x-s0035 - 3.79.94.248
Here is a useful post/guide regarding the game, including a translation of the title, gameplay mechanics, and story context. If you have seen the abbreviation "Incha Couple" or the specific phrase you typed, you are likely looking at a Japanese Nukige (adult game) released by the circle Norn . The title you provided seems to be a truncated or slightly scrambled version of the full title, specifically the part about "Sex Training" and "Top" (perhaps referring to the characters or ranking). 1. Correct Title & Translation The full Japanese title is: 『陰カップルがヤンギャルたちとSEXトレーニングするのは世界を救うためです？』