Yuusha Party ni Kawaii Ko ga Ita no de, Kokuhaku Shitemita.

Season 1. Adapts up to Manga Chapter 55. To continue, start at Manga Vol 12 (Ch 56) or Web Novel Ch 152. WARNING: The Light Novel was discontinued in 2015 (Vol 3). The anime rushed the final 'Arranged Marriage' arc; reading from Manga Ch 52 is recommended for a better experience. Despite some anime-original moments and skipped canon scenes, the fluffy core plot remains intact. Manga and Web Novel are ongoing.