
Quick answer — Tetsuya Endou worked on World Trigger 2nd Season (Assistance), Sound of the Sky (Assistance), K: RETURN OF KINGS (Assistance) and 2 more anime.
Tetsuya Endou worked on World Trigger 2nd Season (Assistance), Sound of the Sky (Assistance), K: RETURN OF KINGS (Assistance), K (Assistance), The World Ends with You The Animation (Executive Producer).