Hinata Ema is the only daughter of a famous adventurer, Hinata Rintarou. One day, Ema learns that Rintarou is going to remarry with a successful apparel maker named Asahina Miwa. Since she doesn't want to disturb them, Ema decides to move out and live with her 13 new brothers in a mansion called Sunrise Residence. As they live under the same roof, romance is starting to grow between Ema and the Asahina brothers.
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