Rinne no Lagrange short specials included in the Rinne no Lagrange Blu-rays and DVDs.

Goldran follows the adventures of three young boys who are tasked with finding alien robot fighters, or Braves, that are sleeping in the form of crystals. Their major antagonist is the flamboyant and thoroughly incompetent Walter, and the villains that follow him are often similarly humorous. (Source: Wikipedia)

The series follows the daily adventures of Kapibarasan and his animal friends as they chill out among the Midorino Grasslands. (Source: Crunchyroll)

Kanon spin-off OVA bundled with vol. 22 of the Kami nomi zo Shiru Sekai manga.