Yukari Nejima has long had a crush on Misaki Takasaki, who it turns out reciprocates those feelings. However, to combat a declining birthrate the Japanese government has instituted a system of arranged marriage in which people are paired up on their 16th birthday based on a ‘compatibility calculation’, and to his dismay it assigns Ririna Sanada as his partner instead. Ririna is not thrilled by this development either and decides to encourage Yukari and Misaki’s relationship.
A love polygon romance with minor ecchi harem elements. In addition to the central relationship triangle, it also includes a tertiary unrequited yaoi love aspect.
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