Sibling Bonds (兄妹の絆, Kyōdai no Kizuna lit. Bonds of Brothers and Sisters) is the second paralogue of Fire Emblem Heroes.
The names of three parts in this paralogue are Brothers and Sisters (兄と妹, Ani to Imoto lit. The Older Brother and the Younger Sister), Siblings of Thunder (青雷の兄妹, Sōrai no Kyōdai lit. Brother and Sister of Blue Thunder), and Courage and Devotion (獅子王と妹, Shishi'ō to Imoto lit. The Lion King and the Younger Sister).
(†) indicates a Hero that is obtained via Grand Hero Battles (‡) indicates a Hero that is obtained via Tempest Trials (*) indicates a Hero that is currently only available as a Special Hero (¥) indicates a Hero that is only available in Legendary and Mythic Hero Summoning Focuses