Paulendo wophunzitsa ku Bayankala Mountain Range m'chigawo cha Qinghai ku China, abambo ake a Genma ndi a Ranma Saotome ndi am'madzi omwe amatembereredwa ku Jusenkyo. Amatenga chilichonse chakumwa m'madzi zaka mazana kapena 1000 zapitazo nthawi iliyonse yomwe amakhudza madzi ozizira wina akagwa mchitsime. Hex imabwereranso ikawululidwa mpaka madzi awo otentha atakumana ndi madzi otentha. Pomwe Ranma amagwera nthawi yachilimwe yamayi yemwe wamira Genma amagwa kumapeto kwa panda.
Atabwerera ku Japan, awiriwa amakhala ku Nerima, Tokyo pa dojo ya mnzake wakale wa Genma a Soun Tendo, wogwira nawo ntchito ku Musabetsu Kakuto Ryu kapena "Anything-Goes School" yamasewera omenyera nkhondo omwe a Genma adapereka ku Ranma. Soun ndi Genma adavomereza zaka zapitazo kuti ana awo adzakwatirana ndikupitiliza Tendo Dojo. Soun ali ndi ana aakazi atatu achichepere: onyoza pang'ono, masewera andewu, osakondera komanso odzikonda Nabiki komanso wopepuka komanso waulemu Kasumi wophunzitsa Akane. Akane, wazaka za Ranma, amatchedwa alongo ake ndi alongo ake poganiza kuti chifukwa Ranma ndi mchimwene chabe theka la nthawiyo ndipo Akane sakonda anyamata, onse ndi angwiro. Onse awiri Akane ndi Ranma amakana kutengana pachiyambi, popeza sanafunsidwe pamapeto pake, komabe amatha kutengedwa ngati kutomerana ndikupulumutsa kapena kuthandizana pazochitika zina. Amatha kupezeka mu bizinesi ya wina ndi mzake chifukwa chake nthawi zonse amakhala akudzinenera kuti ali ndi chidani chachikondi chomwe chimayang'ana kwambiri chilolezo.
Ranma amapita kusukulu ndi Akane ku Furinkan High School (Furinkan Koko), komwe amakwaniritsa mdani wake wobwezeretsanso Tatewaki Kuno, wamkulu wa timu ya kendo yemwe amatsata mwamphamvu Akane, koma kuphatikiza pamenepo amakondana ndi mawonekedwe achikazi a Ranma osapeza hex yake (ngakhale ziwerengero zina zimamvetsetsa). Nerima imagwira ntchito ngati mkhalapakati pa mpikisano wa masewera omenyera nkhondo mo-Re poyambira pamipikisano ya Ranma, monga Ryoga Hibiki yemwe adatayika kwamuyaya yemwe adayenda pakati pa Japan kukhala kumbuyo chakunyumba kwake, komwe Ranma adakhala katatu kumudikirira. Kumene amagwera ku Kasupe wa Drown Piglet, Ryoga, akufuna kubwezera Ranma, adamutengera ku Jusenkyo. Tsopano atamwaza madzi ozizira amatenga mtundu wa nkhumba yaying'ono. Posamvetsetsa izi, Akane amafuna kuti nkhumbayo ikhale mayina ndi chiweto chake Pchan, koma Ranma amamumvetsa ndikumuda chifukwa chogwiritsa ntchito zochitikazi ndikusunga kiyi. Wopikisana naye ndi Mousse yemwe amayandikira pafupi, yemwe amakhala bakha akafika ponyowa komanso amagwera mu dziwe lomwe ndi matsenga, komaliza, pali wamkulu-wamkulu wa Ranma, Happosai, yemwe amakhala nthawi yake akuba zovala za atsikana akusukulu.
Amuna a Ranma amtsogolo amachokera ku masewera olimbitsa thupi ochita masewera olimbitsa thupi omwe ali pachiwopsezo cha bwenzi lake lachiwiri ndi achinyamata ku Ukyo Kuonji, ndi Kodachi Kuno wogulitsa yemwe ndi okonomiyaki, kuphatikiza ndi Chinese Shampoo yaku China, mothandizidwa ndi agogo ake aakazi a Cologne. Chiwonetserochi chikuyenda bwino, kolejiyo imagwiritsa ntchito kubwerera kwa omwe ali ndi nkhawa, ku Hawaii- kusungitsa mphamvu komanso kusinkhasinkha Principal Kuno -kusintha mwana / wamkulu Hinako Ninomiya ngati mphunzitsi wachingerezi wa Ranma. Kusasunthika kwa Ranma posankha za chikondi chake chenicheni kumabweretsa chisokonezo pamoyo wakukoleji komanso pachibwenzi chake
