Manga: The Titan’s Bride; Kyojin-zoku no hanayome; Невеста титана; 巨人族の花嫁
Plot: Mizuki Kouichi is a popular high school student and captain of the basketball club, one day he finds himself transported to another world… to become the wife of the Prince of the Titans. How to deal with their size difference?!
Anime adaptation: The Titan’s Bride Anime Online – Uncensored (Eng Subs)