Close Modal

Betrothed to My Sister's Ex (Manga) Vol. 1

Author Tobirano
Illustrated by Chikage Nakakura
Contributions by Mai Murasaki
Paperback
5"W x 7-1/8"H | 13 oz | 48 per carton
On sale Jan 20, 2026 | 160 Pages | 9798895617526
Rated T

A woman who’s lived her life in the shadow of her sister must suddenly take her place after a tragic accident—but her life is about to get way more complicated. Light novels also from Seven Seas—and don't miss the anime!

Marie was never meant to shine. Though she's a baron's daughter, she's treated like a servant in her own home—especially compared to her glamorous sister, Anastasia. Even on Marie’s birthday, the spotlight is stolen, as the family uses the party to parade Anastasia before potential suitors. But when the dashing Count Kyros accidentally stumbles upon Marie—ragged clothes and all—he’s instantly taken with her. Sparks fly… until a mix-up leads him to propose to the wrong sister! Can Marie and Kyros overcome the confusion and find their way back to each other?

Based on the hit light novel series that also inspired the anime—don’t miss this Cinderella romance where love blooms in the most unexpected way!
Tobirano is a novelist in Japan. Betrothed to My Sister's Ex is their first series to be published in English.

Chikage Nakakura is an artist in Japan. They are known for their work on Betrothed to My Sister's Ex.

Mai Murasaki is an artist in Japan. They are known for their work on Villainous Daughter Aims for the Last Boss and Betrothed to My Sister's Ex.
Available for sale exclusive:
•     Afghanistan
•     Aland Islands
•     Albania
•     Algeria
•     Andorra
•     Angola
•     Anguilla
•     Antarctica
•     Antigua/Barbuda
•     Argentina
•     Armenia
•     Aruba
•     Australia
•     Austria
•     Azerbaijan
•     Bahamas
•     Bahrain
•     Bangladesh
•     Barbados
•     Belarus
•     Belgium
•     Belize
•     Benin
•     Bermuda
•     Bhutan
•     Bolivia
•     Bonaire, Saba
•     Bosnia Herzeg.
•     Botswana
•     Bouvet Island
•     Brazil
•     Brit.Ind.Oc.Ter
•     Brit.Virgin Is.
•     Brunei
•     Bulgaria
•     Burkina Faso
•     Burundi
•     Cambodia
•     Cameroon
•     Canada
•     Cape Verde
•     Cayman Islands
•     Centr.Afr.Rep.
•     Chad
•     Chile
•     China
•     Christmas Islnd
•     Cocos Islands
•     Colombia
•     Comoro Is.
•     Congo
•     Cook Islands
•     Costa Rica
•     Croatia
•     Cuba
•     Curacao
•     Cyprus
•     Czech Republic
•     Dem. Rep. Congo
•     Denmark
•     Djibouti
•     Dominica
•     Dominican Rep.
•     Ecuador
•     Egypt
•     El Salvador
•     Equatorial Gui.
•     Eritrea
•     Estonia
•     Ethiopia
•     Falkland Islnds
•     Faroe Islands
•     Fiji
•     Finland
•     France
•     Fren.Polynesia
•     French Guinea
•     Gabon
•     Gambia
•     Georgia
•     Germany
•     Ghana
•     Gibraltar
•     Greece
•     Greenland
•     Grenada
•     Guadeloupe
•     Guam
•     Guatemala
•     Guernsey
•     Guinea Republic
•     Guinea-Bissau
•     Guyana
•     Haiti
•     Heard/McDon.Isl
•     Honduras
•     Hong Kong
•     Hungary
•     Iceland
•     India
•     Indonesia
•     Iran
•     Iraq
•     Ireland
•     Isle of Man
•     Israel
•     Italy
•     Ivory Coast
•     Jamaica
•     Japan
•     Jersey
•     Jordan
•     Kazakhstan
•     Kenya
•     Kiribati
•     Kuwait
•     Kyrgyzstan
•     Laos
•     Latvia
•     Lebanon
•     Lesotho
•     Liberia
•     Libya
•     Liechtenstein
•     Lithuania
•     Luxembourg
•     Macau
•     Macedonia
•     Madagascar
•     Malawi
•     Malaysia
•     Maldives
•     Mali
•     Malta
•     Marshall island
•     Martinique
•     Mauritania
•     Mauritius
•     Mayotte
•     Mexico
•     Micronesia
•     Minor Outl.Ins.
•     Moldavia
•     Monaco
•     Mongolia
•     Montenegro
•     Montserrat
•     Morocco
•     Mozambique
•     Myanmar
•     Namibia
•     Nauru
•     Nepal
•     Netherlands
•     New Caledonia
•     New Zealand
•     Nicaragua
•     Niger
•     Nigeria
•     Niue
•     Norfolk Island
•     North Korea
•     North Mariana
•     Norway
•     Oman
•     Pakistan
•     Palau
•     Palestinian Ter
•     Panama
•     PapuaNewGuinea
•     Paraguay
•     Peru
•     Philippines
•     Pitcairn Islnds
•     Poland
•     Portugal
•     Puerto Rico
•     Qatar
•     Reunion Island
•     Romania
•     Russian Fed.
•     Rwanda
•     S. Sandwich Ins
•     Saint Martin
•     Samoa,American
•     San Marino
•     SaoTome Princip
•     Saudi Arabia
•     Senegal
•     Serbia
•     Seychelles
•     Sierra Leone
•     Singapore
•     Sint Maarten
•     Slovakia
•     Slovenia
•     Solomon Islands
•     Somalia
•     South Africa
•     South Korea
•     South Sudan
•     Spain
•     Sri Lanka
•     St Barthelemy
•     St. Helena
•     St. Lucia
•     St. Vincent
•     St.Chr.,Nevis
•     St.Pier,Miquel.
•     Sth Terr. Franc
•     Sudan
•     Suriname
•     Svalbard
•     Swaziland
•     Sweden
•     Switzerland
•     Syria
•     Tadschikistan
•     Taiwan
•     Tanzania
•     Thailand
•     Timor-Leste
•     Togo
•     Tokelau Islands
•     Tonga
•     Trinidad,Tobago
•     Tunisia
•     Turkey
•     Turkmenistan
•     Turks&Caicos Is
•     Tuvalu
•     US Virgin Is.
•     USA
•     Uganda
•     Ukraine
•     Unit.Arab Emir.
•     United Kingdom
•     Uruguay
•     Uzbekistan
•     Vanuatu
•     Vatican City
•     Venezuela
•     Vietnam
•     Wallis,Futuna
•     West Saharan
•     Western Samoa
•     Yemen
•     Zambia
•     Zimbabwe

About

A woman who’s lived her life in the shadow of her sister must suddenly take her place after a tragic accident—but her life is about to get way more complicated. Light novels also from Seven Seas—and don't miss the anime!

Marie was never meant to shine. Though she's a baron's daughter, she's treated like a servant in her own home—especially compared to her glamorous sister, Anastasia. Even on Marie’s birthday, the spotlight is stolen, as the family uses the party to parade Anastasia before potential suitors. But when the dashing Count Kyros accidentally stumbles upon Marie—ragged clothes and all—he’s instantly taken with her. Sparks fly… until a mix-up leads him to propose to the wrong sister! Can Marie and Kyros overcome the confusion and find their way back to each other?

Based on the hit light novel series that also inspired the anime—don’t miss this Cinderella romance where love blooms in the most unexpected way!

Creators

Tobirano is a novelist in Japan. Betrothed to My Sister's Ex is their first series to be published in English.

Chikage Nakakura is an artist in Japan. They are known for their work on Betrothed to My Sister's Ex.

Mai Murasaki is an artist in Japan. They are known for their work on Villainous Daughter Aims for the Last Boss and Betrothed to My Sister's Ex.
Penguin Random House Comics Retail