Nkhani ya Kanon, yomwe idakhazikitsidwa pakati pa nyengo yachisanu, ikunena za gulu la atsikana asanu omwe adalumikizana ndi mnyamata yemweyo. Yuichi Aizawa, protagonist wamkulu, adayendera mzinda womwe nkhaniyi idachitika zaka zisanu ndi ziwiri nkhaniyo isanayambike.
Pachiyambi Yuichi ali kutali kwambiri ndi mzinda ndi anthu ake. Asanabwerere, adaganiza kuti akhale ndi msuweni wake, Nayuki Minase, ndi amayi ake, Akiko. Atakhalapo kwa nthawi yayitali, Yuichi wayiwala pafupifupi chilichonse kupatula zazing'ono zomwe zidachitika zaka zisanu ndi ziwiri zapitazo ndipo akufunika kukumbutsidwa zomwe adasiya.
Tsiku lotsatira Yuichi atabwerako, ali kunja ndi Nayuki yemwe akumuwonetsa kuzungulira tawuni. Nayuki akukumbukira kuti amayenera kugula zinthu za chakudya chamadzulo ndipo Yuichi sakufuna kupita naye, akutsutsa kuti akhoza kusochera. Patangopita nthawi pang'ono Nayuki atamusiya akudikirira m'mphepete mwa msewu, mtsikana wina wachilendo dzina lake Ayu Tsukimiya adalowa mwa iye popanda chenjezo lochepa. Atachira, amamukokera ku café yapafupi ndikuvomereza kuti adaba thumba lodzaza ndi taiyaki mwangozi atachita mantha ndi wogulitsa asanakhale ndi mwayi wolipira. Yuichi ndiye amakoka Ayu kubwerera kwa wogulitsa, onse awiri amapepesa chifukwa cha vutolo, ndipo Ayu akhululukidwa. Adaganiza zokumananso tsiku lina ndipo Ayu adanyamuka.
Yuichi sakudziwa poyamba, koma atsikana ena atatu omwe adayiwala amamudziwa bwino. M'nkhani yonseyi, pamene akuphunzira za mphamvu zauzimu za tawuniyi, Yuichi amakumbutsidwa za mtsikana aliyense ndi zochitika za zaka zisanu ndi ziwiri zapitazo mumzindawu wokutidwa ndi chisanu.
