Death Note

"Momo no Uta" was popular among elementary and junior high school students in Kanagawa Prefecture in the early Heisei era. It was said that singing this song would help you find something you were missing, and in recent years it has become popular again among young people. However, those who sing this song have been dying mysteriously one after another. While investigating the series of mysterious deaths, Masumura Kenichi, a writer for the occult magazine "Nessie," discovers the sad truth hidden in the song.

Both are about two people with supernatural powers trying to get each other before other does. Both are battle of wits psychological thriller. Both are based on famous manga........................

Both are very similar...............................................................................................................................................................................................................................................

In both 'immoral' people start dying under mysterious circustances and people think it's God's judgement and this becomes a cult.

Both are about a person, after gaining supernatural power, decides to punish evil.
Both are based on famous manga.