Happy Crescent (ハッピークレセント)

"Happy Crescent" (ハッピークレセント) is a 2010 J-Pop song performed by Nao Toyama in character as Kanon Nakagawa. It appears in The World God Only Knows, also known as Kami nomi zo Shiru Sekai (神のみぞ知るセカイ), where it is used as an ending theme for the Manglobe television anime.

The song leans toward bright, polished pop, with a light rhythmic pulse and a melodic line that keeps the vocal at the center. Its clean, upbeat arrangement gives the ending a buoyant afterglow, while the performance balances idol-style sweetness with a clear, steady sense of momentum.

Within the series, that cheerful finish contrasts neatly with a story built around romance-game strategies, runaway spirits, and the gap between virtual control and real emotion. "Happy Crescent" also stands out in discographic terms: it belongs to the Kanon Nakagawa character-song line rather than to a standalone Nao Toyama solo-debut single.