Halo Legends

This sweeping science-fiction saga delves into the rich Halo universe with 7 exciting stories including tales of Master Chief's mysterious origins, the Spartans' advanced combat capabilities and the tense rivalry between Spartans and Orbital Drop Shock Troopers (ODSTs). (Source: Warnervideo.com)

1) Origins Part1 (STUDIO 4℃) 2) Origins Part2 (STUDIO 4℃) 3) The Duel (Production I.G) 4) Homecoming (Production I.G/BEETRAIN) 5) Odd One Out (Toei Animation) 6) Prototype (Bones) 7) The Babysitter (STUDIO 4℃) 8) The Package (Shinji Aramaki)

Note: Since The Package aired in two parts on Halo Waypoint and Origins has two parts the total number of episodes is 9 for the 7 stories. 5 of the 9 episodes aired online, making Halo Legends technically an ONA.