Morihito Otogi, a high school student who comes from a lineage of ogres, enjoys a peaceful, ordinary life until his childhood friend, Nico, moves in with him. Nico is a witch-in-training, and chooses Morihito to be her familiar. While Nico is thrilled to reunite with her old friend and crush, Morihito is tasked with the perilous duty to protect her from a foretold calamity. Between the unpredictable chaos caused by Nico’s magic, and the awkwardness of sharing a home, their lives become a whirlwind of supernatural hijinks and threats.
 
(Source: Crunchyroll) 

Notes: 
- Worldwide premiere of Episodes 1-3 titled as WITCH WATCH: WATCH PARTY before the Japanese premiere was pre-screened in advance in theaters on March 16, 2025 in North America by GKIDS Films and March 22 and 23 in Europe by Animation Digital Network. 
- Episodes 1-2 + a selection of stories (Cat Scout, Kanshi's Part Time Job Diaries ~ The Side Job ~, and Kan & Nico's Channel) was pre-screened in advance in theaters on March 30, 2025 in Japan. The regular TV broadcast began April 6, 2025.