Read manga: Youkai Watch

manga
Other name: 妖怪ウォッチ
Genres: Shounen
Artists: KONISHI Noriyuki
Status: ongoing
Updated at: Aug 25, 2019
Summary:

When Keita frees Whisper, a ghost-like youkai, from 190 years of imprisonment, Whisper pledges to protect Keita from supernatural dangers. Whisper also gives Keita a watch that allows Keita to see other youkai. Together with the twin-tailed cat spirit Jibanyan, they encounter many youkai-related problems and solve them.